Tusa SF-0112 Tri-Force Fin
In stock — ships from Irvine, CA
This item is currently on backorder. Order now to reserve yours, and we will ship it as soon as it is back in stock.
Tusa SF-0112 Tri-Force Fin - Black / XS (X-Small) is backordered and will ship as soon as it is back in stock.
Pickup currently unavailable at In Store
All TUSA size charts on one page. Imperial in bold, metric underneath.
Fins
TUSA X-Pert Z-3 Zoom fins (model SF-15)
Foot length
| Size | Foot length in · cm |
|---|---|
|
XS–S US-male 5–7 · US-female 6.5–8.5 · EUR 38–40 |
9.4–10.2 24–26 |
|
M–ML US-male 7–10 · US-female 8.5–12 · EUR 40–44 |
10.2–11 26–28 |
|
L–XL US-male 10–14 · US-female 12–15 · EUR 44–50 |
11–12.6 28–32 |
Fin length, fin width and weight pair
| Size | Fin length in · mm |
Fin width in · mm |
Weight pair lb · g |
|---|---|---|---|
|
XS–S US-male 5–7 · US-female 6.5–8.5 · EUR 38–40 |
22.8 578 |
8.7 222 |
4.1 1,850 |
|
M–ML US-male 7–10 · US-female 8.5–12 · EUR 40–44 |
23.9 608 |
9.1 232 |
4.7 2,140 |
|
L–XL US-male 10–14 · US-female 12–15 · EUR 44–50 |
25.7 653 |
9.4 238 |
5.4 2,450 |
From TUSA’s chart: Model #: SF-15 Product Name: X-Pert Z-3 Zoom
TUSA Solla Full Foot (model FF-23)
Foot length
| Size | Foot length in · cm |
|---|---|
|
XS US-male 3–4 · US-female 4.5–5.5 · EUR 36–37 |
9.1–9.3 23–23.5 |
|
S US-male 5–6 · US-female 6–7.5 · EUR 38–39 |
9.4–9.6 24–24.5 |
|
M US-male 7–7.5 · US-female 8–9 · EUR 40–41 |
9.8–10 25–25.5 |
|
ML US-male 8–9 · US-female 9.5–10.5 · EUR 42–43 |
10.2–10.4 26–26.5 |
|
L US-male 9–11 · US-female 10.5–12 · EUR 44–45 |
10.6–10.8 27–27.5 |
|
XL US-male 12–13 · US-female 13.5–15 · EUR 46–47 |
11–11.6 28–29.5 |
Fin length, fin width and weight pair
| Size | Fin length in · mm |
Fin width in · mm |
Weight pair lb · g |
|---|---|---|---|
|
XS US-male 3–4 · US-female 4.5–5.5 · EUR 36–37 |
23.6 600 |
8 203 |
2.6 1,200 |
|
S US-male 5–6 · US-female 6–7.5 · EUR 38–39 |
24.4 620 |
8 203 |
2.7 1,215 |
|
M US-male 7–7.5 · US-female 8–9 · EUR 40–41 |
25.2 640 |
8.4 213 |
3 1,380 |
|
ML US-male 8–9 · US-female 9.5–10.5 · EUR 42–43 |
26 660 |
8.4 213 |
3.1 1,395 |
|
L US-male 9–11 · US-female 10.5–12 · EUR 44–45 |
27.2 690 |
8.7 222 |
4.1 1,875 |
|
XL US-male 12–13 · US-female 13.5–15 · EUR 46–47 |
27.6 701 |
8.7 222 |
4.1 1,890 |
From TUSA’s chart: Model #: FF-23 Product Name: Solla Full Foot
TUSA Imprex Duo Fins (SF0102)
Foot length
| Size | Foot length in · cm |
|---|---|
|
S US-male 7–8 · US-female 8.5–9.5 · EUR 39–42 |
9.6–10.2 24.5–26 |
|
M US-male 8–10 · US-female 9.5–12 · EUR 42–46 |
10.2–11 26–28 |
|
L US-male 10–13 · US-female 12–14 · EUR 46–52 |
11–12.2 28–31 |
Fin length, fin width and weight pair
| Size | Fin length in · mm |
Fin width in · mm |
Weight pair lb · g |
|---|---|---|---|
|
S US-male 7–8 · US-female 8.5–9.5 · EUR 39–42 |
23 583 |
8.4 213 |
3.4 1,560 |
|
M US-male 8–10 · US-female 9.5–12 · EUR 42–46 |
24.3 617 |
8.7 220 |
4.1 1,860 |
|
L US-male 10–13 · US-female 12–14 · EUR 46–52 |
24.8 630 |
8.7 220 |
3.9 1,790 |
TUSA Solla Fins (model SF-22)
Foot length
| Size | Foot length in · cm |
|---|---|
|
XS US-male 3–5 · US-female 4.5–6.5 · EUR 34–38 |
8.7–9.4 22–24 |
|
S US-male 5–7 · US-female 6.5–8.5 · EUR 38–40 |
9.4–10.2 24–26 |
|
M US-male 7–10 · US-female 8.5–12 · EUR 40–44 |
10.2–11 26–28 |
|
L–XL US-male 10–14 · US-female 12–15 · EUR 44–50 |
11–12.6 28–32 |
Fin length, fin width and weight pair
| Size | Fin length in · mm |
Fin width in · mm |
Weight pair lb · g |
|---|---|---|---|
|
XS US-male 3–5 · US-female 4.5–6.5 · EUR 34–38 |
21.9 557 |
8.5 215 |
3.4 1,550 |
|
S US-male 5–7 · US-female 6.5–8.5 · EUR 38–40 |
22.7 577 |
8.5 217 |
3.6 1,630 |
|
M US-male 7–10 · US-female 8.5–12 · EUR 40–44 |
23.9 607 |
8.8 224 |
4.1 1,865 |
|
L–XL US-male 10–14 · US-female 12–15 · EUR 44–50 |
24.7 627 |
8.9 226 |
4.4 1,975 |
From TUSA’s chart: Model #: SF-22 Product Name: TUSA Solla Fins
TUSA HyFlex Vesna Fins (model SF0101)
Foot length
| Size | Foot length in · cm |
|---|---|
|
XS US-male 3–5 · US-female 4.5–6.5 · EUR 34–38 |
8.7–9.4 22–24 |
|
S US-male 5–7 · US-female 6.5–8.5 · EUR 38–40 |
9.4–10.2 24–26 |
|
M US-male 7–10 · US-female 8.5–12 · EUR 40–44 |
10.2–11 26–28 |
|
L–XL US-male 10–14 · US-female 12–15 · EUR 44–50 |
11–12.6 28–32 |
Fin length, fin width and weight pair
| Size | Fin length in · mm |
Fin width in · mm |
Weight pair lb · g |
|---|---|---|---|
|
XS US-male 3–5 · US-female 4.5–6.5 · EUR 34–38 |
21.7 550 |
8.5 215 |
3.3 1,480 |
|
S US-male 5–7 · US-female 6.5–8.5 · EUR 38–40 |
22.5 571 |
8.5 215 |
3.4 1,535 |
|
M US-male 7–10 · US-female 8.5–12 · EUR 40–44 |
24.3 617 |
8.9 225 |
3.7 1,695 |
|
L–XL US-male 10–14 · US-female 12–15 · EUR 44–50 |
25.1 638 |
8.9 225 |
3.9 1,765 |
From TUSA’s chart: Model #: SF0101 Product Name: TUSA HyFlex Vesna Fins
TUSA HyFlex SWITCH fins (model SF0104)
Foot length
| Size | Foot length in · cm |
|---|---|
|
XS US-M 3–5 · US-F 4.5–6.5 · EUR 34–38 |
8.7–9.4 22–24 |
|
S US-M 5–7 · US-F 6.5–8.5 · EUR 38–40 |
9.4–10.2 24–26 |
|
M US-M 7–10 · US-F 8.5–12 · EUR 40–44 |
10.2–11 26–28 |
|
L US-M 10–12 · US-F 12 · EUR 43–46 |
11–12.6 28–32 |
|
XL US-M 12–14 · EUR 46–49 |
11.8–12.6 30–32 |
Fin length, fin width and weight (pair)
| Size | Fin length in · mm |
Fin width in · mm |
Weight (pair) lb · g |
|---|---|---|---|
|
XS US-M 3–5 · US-F 4.5–6.5 · EUR 34–38 |
21.9 555 |
8.0 204 |
3.9 1,760 |
|
S US-M 5–7 · US-F 6.5–8.5 · EUR 38–40 |
22.7 576 |
8.0 204 |
4.0 1,815 |
|
M US-M 7–10 · US-F 8.5–12 · EUR 40–44 |
23.5 597 |
8.0 204 |
4.2 1,895 |
|
L US-M 10–12 · US-F 12 · EUR 43–46 |
24.3 618 |
8.0 204 |
4.3 1,965 |
|
XL US-M 12–14 · EUR 46–49 |
25.1 639 |
8.0 204 |
4.8 2,175 |
TUSA HyFlex SWITCH Pro fins (model SF0107)
HyFlex SWITCH Pro (SF0107)
Foot length
| Size | Foot length in · cm |
|---|---|
|
M US-M 7–10 · US-F 8.5–12 · EUR 40–44 |
10.2–11 26–28 |
|
L US-M 10–12 · US-F 12 · EUR 43–46 |
11–11.8 28–30 |
Fin length, fin width and weight (pair)
| Size | Fin length in · mm |
Fin width in · mm |
Weight (pair) lb · g |
|---|---|---|---|
|
M US-M 7–10 · US-F 8.5–12 · EUR 40–44 |
23.5 597 |
8.0 204 |
4.2 1,895 |
|
L US-M 10–12 · US-F 12 · EUR 43–46 |
24.3 618 |
8.0 204 |
4.3 1,965 |
Compatible size, M to XL (2026 catalog)
| Size | Foot length in · cm |
|---|---|
|
M (Regular) US-M 7–10 · US-F 8.5–12 · EUR 40–44 |
10.2–11 26–28 |
|
L US-M 10–12 · EUR 43–46 |
11–11.8 28–30 |
|
XL US-M 12–14 · EUR 46–49 |
11.8–12.6 30–32 |
XL: EURO ONLY
TUSA Travel Right Fins (model SF0110)
Foot length
| Size | Foot length in · cm |
|---|---|
|
XS US-male 3.5–5.5 · US-female 5.5–7.5 · EUR 33–37 |
8.5–9.3 21.5–23.5 |
|
S US-male 5.5–7.5 · US-female 7.5–9.5 · EUR 37–41 |
9.3–10 23.5–25.5 |
|
M (Regular) US-male 7.5–9.5 · US-female 9.5–11.5 · EUR 40–43 |
10–10.8 25.5–27.5 |
|
L US-male 9.5–11.5 · US-female 11.5–13.5 · EUR 43–46 |
10.8–11.6 27.5–29.5 |
|
XL US-male 11.5–14 · US-female 13.5–16 · EUR 47–49.5 |
11.6–12.6 29.5–32 |
Fin length, fin width and weight pair
| Size | Fin length in · mm |
Fin width in · mm |
Weight pair lb · g |
|---|---|---|---|
|
XS US-male 3.5–5.5 · US-female 5.5–7.5 · EUR 33–37 |
18.7 475 |
8.5 215 |
2.7 1,240 |
|
S US-male 5.5–7.5 · US-female 7.5–9.5 · EUR 37–41 |
19.8 502 |
8.9 225 |
3.2 1,430 |
|
M (Regular) US-male 7.5–9.5 · US-female 9.5–11.5 · EUR 40–43 |
20.5 520 |
8.9 225 |
3.2 1,440 |
|
L US-male 9.5–11.5 · US-female 11.5–13.5 · EUR 43–46 |
21.5 545 |
9.1 232 |
3.7 1,700 |
|
XL US-male 11.5–14 · US-female 13.5–16 · EUR 47–49.5 |
22 559 |
9.1 232 |
3.8 1,710 |
From TUSA’s chart: Model #: SF0110 Product Name: TUSA Travel Right Fins
TUSA HyFlex Zoom Fins (SF0111)
Foot length
| Size | Foot length in · cm |
|---|---|
|
XS US-M 3–5 · US-F 4.5–6.5 · EUR 34–38 |
8.7–9.4 22–24 |
|
S US-M 5–7 · US-F 6.5–8.5 · EUR 38–40 |
9.4–10.2 24–26 |
|
M US-M 7–10 · US-F 8.5–12 · EUR 40–44 |
10.2–11 26–28 |
|
L US-M 10–12 · US-F 12 · EUR 44–50 |
11–12.6 28–32 |
|
XL US-M 12–14 · EUR 46–49 |
11.8–12.6 30–32 |
Fin length, fin width and weight (pair)
| Size | Fin length in · mm |
Fin width in · mm |
Weight (pair) lb · g |
|---|---|---|---|
|
XS US-M 3–5 · US-F 4.5–6.5 · EUR 34–38 |
25.1 639 |
8.8 225 |
4.2 1945 |
|
S US-M 5–7 · US-F 6.5–8.5 · EUR 38–40 |
25.9 660 |
8.8 225 |
4.4 2000 |
|
M US-M 7–10 · US-F 8.5–12 · EUR 40–44 |
26.8 683 |
8.8 225 |
4.5 2080 |
|
L US-M 10–12 · US-F 12 · EUR 44–50 |
27.7 704 |
8.8 225 |
4.7 2150 |
|
XL US-M 12–14 · EUR 46–49 |
28.5 725 |
9.8 225 |
5.2 2380 |
From TUSA’s chart: Model #: SF0111
TUSA Liberator X-Ten Fins (model SF-5500)
Foot length
| Size | Foot length in · cm |
|---|---|
|
S US-male 5–7 · US-female 6.5–8.5 · EUR 38–40 |
8.7–10.2 22–26 |
|
Reg US-male 7–10 · US-female 8.5–12 · EUR 40–44 |
9.4–11 24–28 |
Fin length, fin width and weight pair
| Size | Fin length in · mm |
Fin width in · mm |
Weight pair lb · g |
|---|---|---|---|
|
S US-male 5–7 · US-female 6.5–8.5 · EUR 38–40 |
22.4 568 |
8.4 214 |
1.5 660 |
|
Reg US-male 7–10 · US-female 8.5–12 · EUR 40–44 |
23.5 598 |
8.9 225 |
1.7 760 |
From TUSA’s chart: Model #: SF-5500 Product Name: Liberator X-Ten
BCDs
TUSA Soverin-Alpha BCD
Waist
| Size | Waist in · cm |
|---|---|
| XS |
23.7–27.6 60–70 |
| S |
25.6–31.5 65–80 |
| M |
29.6–35.5 75–90 |
| L–XL |
33.5–43.4 85–110 |
Lift capacity, BC weight (dry) and releasable weight
| Size | Lift capacity lbf · N |
BC weight (dry) lb · kg |
Releasable weight lb · kg |
|---|---|---|---|
| XS |
18.0 80 |
7.1 3.2 |
17.6 8.0 |
| S |
24.7 110 |
7.1 3.2 |
17.6 8.0 |
| M |
29.2 130 |
7.3 3.3 |
17.6 8.0 |
| L–XL |
38.2 170 |
7.5 3.4 |
17.6 8.0 |
TUSA Liberator BCD
Waist
| Size | Waist in · cm |
|---|---|
| XS |
22.1–24.1 56–61 |
| S |
23.7–27.6 60–70 |
| M |
25.6–31.5 65–80 |
| L |
29.6–35.5 75–90 |
| XL |
33.5–39.4 85–100 |
Lift capacity, BC weight (dry) and releasable weight
| Size | Lift capacity lbf · N |
BC weight (dry) lb · kg |
Releasable weight lb · kg |
|---|---|---|---|
| XS |
18 80 |
6.4 2.9 |
17.6 8 |
| S |
20.2 90 |
6.6 3 |
17.6 8 |
| M |
27 120 |
6.8 3.1 |
17.6 8 |
| L |
33.7 150 |
7.1 3.2 |
17.6 8 |
| XL |
40.5 180 |
7.1 3.2 |
17.6 8 |
TUSA Tina BCD
Waist
| Size | Waist in · cm |
|---|---|
| 2XS |
22.8–26 58–66 |
| XS |
25.2–28.7 64–73 |
| S |
27.6–31.5 70–80 |
| M |
30.7–37.8 78–96 |
| L |
34.3–44.1 87–112 |
Lift capacity, BC weight (dry) and releasable weight
| Size | Lift capacity lbf · N |
BC weight (dry) lb · kg |
Releasable weight lb · kg |
|---|---|---|---|
| 2XS |
22.5 100 |
6.8 3.1 |
17.6 8 |
| XS |
24.7 110 |
7.1 3.2 |
17.6 8 |
| S |
29.2 130 |
7.3 3.3 |
17.6 8 |
| M |
36 160 |
7.5 3.4 |
17.6 8 |
| L |
36 160 |
7.5 3.4 |
17.6 8 |
TUSA Conquest II BCD
Waist
| Size | Waist in · cm |
|---|---|
| XS–S |
25.6–31.5 65–80 |
| M |
29.6–35.5 75–90 |
| L |
33.5–39.4 85–100 |
| XL |
37.4–51.2 95–130 |
Lift capacity, BC weight (dry) and releasable weight
| Size | Lift capacity lbf · N |
BC weight (dry) lb · kg |
Releasable weight lb · kg |
|---|---|---|---|
| XS–S |
36 160 |
7.7 3.5 |
17.6 8 |
| M |
38.2 170 |
7.9 3.6 |
17.6 8 |
| L |
49.5 220 |
8.2 3.7 |
17.6 8 |
| XL |
49.5 220 |
8.2 3.7 |
17.6 8 |
TUSA X-Wing BCD
Waist
| Size | Waist in · cm |
|---|---|
| S |
25.6–31.5 65–80 |
| M |
29.6–35.5 75–90 |
| L |
33.5–39.4 85–100 |
| XL |
37.4–51.2 95–130 |
Lift capacity, BC weight (dry) and releasable weight
| Size | Lift capacity lbf · N |
BC weight (dry) lb · kg |
Releasable weight lb · kg |
|---|---|---|---|
| S |
29.2 130 |
7.7 3.5 |
17.6 8 |
| M |
29.2 130 |
7.7 3.5 |
17.6 8 |
| L |
40.5 180 |
8.4 3.8 |
17.6 8 |
| XL |
40.5 180 |
8.4 3.8 |
17.6 8 |
TUSA Crestline (2020) BCD
Waist
| Size | Waist in · cm |
|---|---|
| XS |
22.1–24.1 56–61 |
| S |
23.7–27.6 60–70 |
| M |
25.6–31.5 65–80 |
| L |
29.6–35.5 75–90 |
| XL |
33.5–39.4 85–100 |
Lift capacity, BC weight (dry) and releasable weight
| Size | Lift capacity lbf · N |
BC weight (dry) lb · kg |
Releasable weight lb · kg |
|---|---|---|---|
| XS |
18 80 |
4.9 2.2 |
N/A N/A |
| S |
22.5 100 |
5.1 2.3 |
N/A N/A |
| M |
31.5 140 |
5.3 2.4 |
N/A N/A |
| L |
38.2 170 |
5.3 2.4 |
N/A N/A |
| XL |
45 200 |
5.5 2.5 |
N/A N/A |
TUSA T-Wing BCD
Waist
| Size | Waist in · cm |
|---|---|
| XS–XL |
22.1–39.4 56–100 |
Lift capacity, BC weight (dry) and releasable weight
| Size | Lift capacity lbf · N |
BC weight (dry) lb · kg |
Releasable weight |
|---|---|---|---|
| XS–XL |
28.1 125 |
6.6 3 |
— |
TUSA Jazmine BCD
Waist
| Size | Waist in · cm |
|---|---|
| XS |
22.1–24.1 56–61 |
| S |
23.7–27.6 60–70 |
| M |
25.6–31.5 65–80 |
| L |
29.6–35.5 75–90 |
Lift capacity, BC weight (dry) and releasable weight
| Size | Lift capacity lbf · N |
BC weight (dry) lb · kg |
Releasable weight lb · kg |
|---|---|---|---|
| XS |
18 80 |
6.2 2.8 |
17.6 8 |
| S |
22.5 100 |
6.4 2.9 |
17.6 8 |
| M |
31.5 140 |
6.6 3 |
17.6 8 |
| L |
38.2 170 |
6.8 3.1 |
17.6 8 |
Source: TUSA’s size chart and TUSA’s current size chart. Where the chart prints only one unit, we converted the other: inches from centimeters (to the nearest 0.1″).
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Product Information
The TUSA HyFlex Tri-Force Fin (SF-0112) is an open heel scuba fin built around TUSA's interchangeable HyFlex System, combining a wide, short tech-style blade with three vent holes, Vortex Generator technology and a TA0918 spring strap with five size adjustments. It is made for divers who want a powerful burst of propulsion per kick with low drag and precise control.
Who it is for
This fin suits scuba and technical divers who prefer a responsive, short-blade kick and controlled maneuvering in confined or task-loaded conditions. Because the blade is part of the HyFlex System, it also appeals to divers who want to swap blades on a compatible HyFlex foot pocket rather than own several complete pairs. The lightweight composition and shorter blade profile make it easier to transport, and the included spring strap is a practical choice for drysuit boots or gloved hands.
Key details
- Wide, short tech-style blade tuned for powerful thrusts and energy-saving efficiency
- Three uniquely shaped vent holes accelerate water flow through the blade instead of around it
- Six Vortex Generator ridges set behind the vent suppress resistance around the blade
- Angled Blade Design (A.B.D.) lengthens the effective stroke of the kick cycle
- Ergonomic open heel foot pocket with TA0918 spring strap, five size adjustments
- TA1802 HyFlex Tri-Force Blade available separately for blade swaps
Compatibility and sizing
Offered in XS, S, M, L and XL, in Black, Gun Metal, Indigo, Khaki and White. TUSA's dimensional data lists roughly 530 x 240 mm and 1,150 g per foot in XS, 553 x 240 mm and 1,200 g in S, 573 x 240 mm and 1,250 g in M, and 594 x 240 mm and 1,300 g in the L to XL range. Size open heel fins around the dive boots you actually wear.
What's in the box
- TUSA SF-0112 HyFlex Tri-Force open heel fins
- TA0918 spring straps with five size adjustments
DiveCatalog.com is an authorized TUSA dealer and a real dive shop in Irvine, California since 2003. Call or chat with us at 888-701-4017 if you want help matching fin size to your boots or confirming HyFlex blade compatibility.
- HyFlex System design interchangeable construction lets the blade and foot pocket be swapped between compatible HyFlex components.
- Wide, short tech-style blade delivers a powerful burst of propulsion with each kick.
- Three vent holes uniquely shaped to accelerate water flow for enhanced kicking performance and reduced drag.
- Vortex Generator technology six ridges set behind the vent suppress resistance around the blade.
- Angled Blade Design (A.B.D.) lengthens the effective stroke of the kick cycle for improved forward drive.
- TA0918 spring strap included with five size adjustments for a repeatable fit over boots.
- Ergonomic foot pocket shaped for comfort on long dives.
- Energy-saving efficiency blade geometry is designed to reduce leg fatigue.
- Lightweight composition for easier transport and packing.
- TA1802 blade sold separately for divers who want to change blades on a compatible HyFlex foot pocket.
- Open heel fit for use with dive boots in scuba and technical diving.
- Five colorways and five sizes Black, Gun Metal, Indigo, Khaki and White in XS through XL.
| Brand | TUSA |
| Model | HyFlex Tri-Force |
| Model Number | SF0112 (SF-0112) |
| Fin Type | Open heel |
| System | TUSA HyFlex interchangeable System |
| Blade Style | Wide, short tech-style; Angled Blade Design (A.B.D.) |
| Venting | Three uniquely shaped vent holes |
| Drag Reduction | Vortex Generator technology, six ridges behind the vent |
| Strap | TA0918 spring strap, five size adjustments |
| Interchangeable Blade | TA1802 HyFlex Tri-Force Blade (sold separately) |
| Sizes | XS, S, M, L, XL |
| Colors | Black (BK), Gun Metal (GM), Indigo (ID), Khaki (KH), White (W) |
| Dimensions XS (per foot) | 530 x 240 mm, 1,150 g |
| Dimensions S (per foot) | 553 x 240 mm, 1,200 g |
| Dimensions M (per foot) | 573 x 240 mm, 1,250 g |
| Dimensions L to XL (per foot) | 594 x 240 mm, 1,300 g |
| Use | Scuba and technical diving |
- TUSA SF-0112 HyFlex Tri-Force open heel fins
- TA0918 spring straps with five size adjustments
⚠️ WARNING: This product contains chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm. For more information, visit www.P65Warnings.ca.gov.
Frequently Asked Questions
What is the difference between open-heel and full-foot fins?
Open-heel fins have an adjustable heel strap and are worn with dive boots, which protect your feet on shore entries and add warmth. Full-foot fins slip on like a shoe against bare skin or a thin sock, and are typically lighter and easier to pack. Most scuba divers choose open-heel fins with boots, while full-foot fins suit warm water, snorkeling, and pool use.
How should scuba fins fit?
Open-heel fins should be sized around the boots you will actually wear, snug with the strap set so your heel stays seated and your foot does not slide forward in the pocket. Full-foot fins should fit like a firm shoe, with no heel lift, no pinched toes, and no gap that lets water pump in and out. Too loose causes heel blisters and lost fins in current, and too tight causes foot cramps.
Should I buy dive boots before fins?
Choose your boots first and size open-heel fins around them, because sole thickness changes the foot-pocket size you need. A thin warm-water boot and a thick cold-water boot with a rugged sole can easily be a fin size apart. If you already own fins, bring them along when you buy boots so you can check the combination.
Are spring straps worth it?
Spring straps replace the adjustable rubber strap with a stainless spring that stretches on and off, so there is nothing to buckle with cold or gloved hands and no rubber strap to perish and snap mid-dive. They hold constant tension, which many divers find more comfortable and consistent. They are sized rather than adjustable, so match the length to your foot pocket and the boots you dive.
What are the best fins for travel?
For travel, length and weight matter most, so shorter blades and travel-specific open-heel or full-foot models pack more easily and save baggage allowance. Some fins have removable blades or compact foot pockets designed for luggage. Pack fins along the outside walls of your bag, where they also act as protection for softer gear.
What is the difference between paddle and split fins?
Paddle fins use a solid blade that transfers power directly, which many divers prefer for precision, control in current, and non-flutter kicks such as the frog kick. Split fins have a slit down the blade that lets water pass through, which generally makes flutter kicking easier on the legs but gives up some control and works less well with other kick styles. Neither is inherently better, so let your kick style, leg strength, and conditions decide, and try both if you get the chance.
How do I care for dive fins?
Rinse them in fresh water after each dive day, paying attention to buckles, springs, and strap channels where salt collects, and dry them out of direct sunlight. Store them flat or hanging from the foot pocket rather than standing on the blade tips, which can take a permanent bend. Check straps, buckles, and any screws before every trip, since a failed buckle is the most common fin problem.
Does the TUSA SF-0112 Tri-Force fin come with spring straps?
Yes. The HyFlex Tri-Force ships with the TUSA TA0918 spring strap, which offers five size adjustments so you can set the length for the boots you dive. A spring strap stretches on and off without buckling, which is helpful with cold or gloved hands, and it holds constant tension once you have chosen the right adjustment position.
Can I replace just the blade on this fin?
Yes. The SF-0112 is part of TUSA's interchangeable HyFlex System, so the blade can be swapped on a compatible HyFlex foot pocket. TUSA sells the blade on its own as the TA1802 HyFlex Tri-Force Blade, which is sold separately. If you are unsure whether your existing foot pocket accepts it, contact us before ordering.
What sizes and colors are available?
The SF-0112 Tri-Force is offered in XS, S, M, L and XL, in Black, Gun Metal, Indigo, Khaki and White. TUSA's dimensional data gives about 530 mm length and 1,150 g per foot in XS, rising to roughly 594 mm and 1,300 g in the L to XL range, with the second dimension listed at 240 mm across sizes.
Why does the Tri-Force blade have vent holes and ridges?
The three uniquely shaped vent holes accelerate water flow through the blade rather than around it, which reduces resistance at the start of each kick. The six Vortex Generator ridges behind the vent smooth the flow leaving the blade to suppress drag. Combined with the Angled Blade Design, the result is a powerful burst of propulsion per kick with energy-saving efficiency.
