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 UF-21 Travel Open Heel Snorkeling Fin is a lightweight open heel fin built around an advanced Multi-Flex long blade with Thrust Channel Technology, a soft foot pocket and an adjustable silicone heel strap. It is made for snorkelers and casual divers who want easy propulsion in a fin that packs for travel, and it is covered by TUSA's 3-year warranty.
Who it is for
This fin suits snorkelers and casual, recreational users who want an open heel design they can adjust quickly and share across boot thicknesses. The open heel pocket makes entry easy and lets you dial in the fit with the silicone strap, while the lightweight construction is aimed at divers and snorkelers who fly to warm water destinations and care about packed size and weight. TUSA lists the dive style as snorkeling and casual use, and the existing listing notes the same versatility for recreational diving and travel.
Key details
- Blade: advanced Multi-Flex long blade with Thrust Channel Technology for propulsion.
- Foot pocket: soft, durable compound in an open heel configuration for ease of entry and a secure fit.
- Strap: adjustable silicone heel strap for comfort over long sessions.
- Model: UF-21, listed dimensions 13 x 8 x 3 inches.
- Warranty: 3-year TUSA warranty.
Compatibility and sizing
Sizes are offered in S (Small), M (Medium) and L (Large), in Black (BK) and Blue (BL). Because this is an open heel fin, size it around the dive boot or neoprene sock you actually wear, then set the silicone strap so your heel stays seated in the pocket. Available variants include UF-21-BK-M, UF-21-BK-L, UF-21-BL-S, UF-21-BL-M and UF-21-BL-L.
DiveCatalog.com is an authorized Tusa dealer and a real dive shop in Irvine, California since 2003. Call 888-701-4017 or start a chat if you want help matching a fin size to your boots or confirming a color and size combination.
- Advanced Multi-Flex long blade designed to flex through the kick cycle for efficient propulsion.
- Thrust Channel Technology channels water along the blade to maximize thrust with each kick.
- Soft, durable foot pocket compound helps reduce fatigue and supports a secure fit.
- Open heel design gives easy entry and quick size adjustment with dive boots or neoprene socks.
- Adjustable silicone heel strap for comfort during extended snorkeling or diving sessions.
- Lightweight construction built with travel and packing in mind.
- Sizes S, M and L in Black (BK) and Blue (BL).
- Listed dimensions 13 x 8 x 3 inches for easy packing reference.
- TUSA 3-year warranty backs the fin.
- Model UF-21 rated by TUSA for snorkeling and casual use, and suited to recreational diving and travel.
| Brand | TUSA |
| Model | UF-21 |
| Product Type | Dive fins, open heel |
| Fin Type | Open heel |
| Blade | Advanced Multi-Flex long blade with Thrust Channel Technology |
| Foot Pocket | Soft, durable compound, open heel |
| Strap | Adjustable silicone heel strap |
| Sizes | S (Small), M (Medium), L (Large) |
| Color Options | Black (BK), Blue (BL) |
| Dive Style | Snorkeling, casual |
| Use | Snorkeling, travel, recreational diving |
| Dimensions | 13 x 8 x 3 in |
| Warranty | 3-year TUSA warranty |
| SKUs | UF-21-BK-M, UF-21-BK-L, UF-21-BL-S, UF-21-BL-M, UF-21-BL-L |
⚠️ 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.
What sizes and colors does the TUSA UF-21 fin come in?
The UF-21 is offered in three sizes, S (Small), M (Medium) and L (Large), and in two colors, Black (BK) and Blue (BL). Current variants are UF-21-BK-M, UF-21-BK-L, UF-21-BL-S, UF-21-BL-M and UF-21-BL-L. Since it is an open heel fin, choose the size that fits over the dive boot or neoprene sock you plan to wear.
Is the UF-21 covered by a warranty?
Yes. TUSA backs the UF-21 Snorkeling Fin with a 3-year warranty, which is TUSA's industry standard term. Keep your purchase record so the warranty can be verified if a claim is needed. Rinse the fin in fresh water after each use to keep the silicone strap and foot pocket free of salt buildup.
Can the UF-21 be used for scuba diving or only snorkeling?
TUSA lists the dive style for the UF-21 as snorkeling and casual use, and the open heel design with an adjustable silicone strap lets you wear it with dive boots. The existing listing describes it as a versatile fin for both snorkeling and recreational scuba, with the Multi-Flex long blade and Thrust Channel Technology providing propulsion in either use.
How well does the UF-21 pack for travel?
The UF-21 is a lightweight fin that TUSA designed with travel in mind, and its listed dimensions are 13 x 8 x 3 inches. That makes it easy to lay along the outside walls of a dive bag or roller case. Pack fins flat rather than resting on the blade tips so the blade keeps its shape.
