Seac Ultraflex 3.5mm Freediving and Spearfishing Gloves
Seac Ultraflex 3.5mm Freediving and Spearfishing Gloves - XS (X-Small) is backordered and will ship as soon as it is back in stock.
Pickup currently unavailable at In Store
Seac hood, boot and glove sizing. Imperial in bold, metric underneath.
Hoods
| Hood size | Head circumference in · cm |
|---|---|
| XS |
20.9–21.3 53–54 |
| S |
21.6–22 55–56 |
| M |
22.4–22.8 57–58 |
| L |
23.2–23.6 59–60 |
| XL |
24–24.4 61–62 |
| 2XL |
24.8–25.1 63–64 |
| 3XL |
25.6–26 65–66 |
Footwear
| Footwear size | Foot length in · cm |
|---|---|
|
2XS EU size 36–37 · US size 4–4.5 · UK size 4–4.5 |
9 23 |
|
XS EU size 37–38 · US size 4.5–5.5 · UK size 4.5–5.5 |
9.4 24 |
|
S EU size 38–39 · US size 5.5–6.5 · UK size 5.5–6.5 |
9.8 25 |
|
M EU size 40–41 · US size 7–8 · UK size 7–7.5 |
10.2 26 |
|
L EU size 42–43 · US size 8.5–9.5 · UK size 8–9 |
10.6 27 |
|
XL EU size 43–44 · US size 10–11 · UK size 9–10 |
11 28 |
|
2XL EU size 45–46 · US size 11.5–12.5 · UK size 11–11.5 |
11.4 29 |
|
3XL EU size 47–48 · US size 12.5–13 · UK size 12.5–13 |
11.8 30 |
For the most accurate fit, we recommend referring to the foot length indicated in the size chart.
Gloves
| Glove size | EU size | Palm circumference in · cm |
|---|---|---|
| 2XS | 5 |
7.00–7.48 17.5–19 |
| XS | 6 |
7.48–8.07 19–20.5 |
| S | 7 |
8.07–8.66 20.5–22 |
| M | 8 |
8.66–9.25 22–23.5 |
| L | 9 |
9.25–9.84 23.5–25 |
| XL | 10 |
9.84–10.43 25–26.5 |
| 2XL | 11 |
10.43–11.02 26.5–28 |
Source: Seac’s current size chart.
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Product Information
The Seac Ultraflex 3.5mm Freediving and Spearfishing Gloves are a mid-weight dive glove built from Ultra Stretch neoprene, with micro rubber inserts covering the entire outer surface for grip and a high cuff for an easy, seamless fit against the wetsuit. They are part of the Ultraflex family, which Seac also makes in 2 mm and 5 mm thicknesses, and this 3.5 mm version is sized from XS to 2XL.
Who it is for
These gloves suit freedivers, spearfishers and scuba divers who want both grip and feel. Micro rubber on palm and fingers helps with hooking carabiners, handling equipment, knotting line and adjusting buckles, so they fit divers who need to keep doing fine motor tasks with their hands in the water.
Key details
- Ultra Stretch neoprene construction, 3.5 mm thickness
- Micro rubber inserts across the entire outer surface for grip and protection
- High cuff for easier donning and to feel the glove as one with the wetsuit
- Available in the Ultraflex line at 2 mm, 3.5 mm and 5 mm thicknesses for different water temperatures
Compatibility and sizing
This model is offered in six sizes, XS, S, M, L, XL and 2XL. Seac publishes palm circumference ranges for the Ultraflex line: XS fits 19 to 20.5 cm, S fits 20.5 to 22 cm, M fits 22 to 23.5 cm, L fits 23.5 to 25 cm, XL fits 25 to 26.5 cm, and 2XL (XXL) fits 26.5 to 28 cm. Measure around your palm, not your wrist, for the most accurate fit.
DiveCatalog.com is an authorized Seac dealer and a dive shop based in Irvine, California, serving divers since 2003. Call or chat with us if you need help picking a thickness or confirming your glove size before you order.
- Ultra Stretch neoprene: 3.5mm thickness for diving, freediving and underwater fishing.
- Full micro rubber coverage: The entire outer surface of the glove is covered with micro rubber inserts for grip and protection.
- Dexterity-focused grip: Textured palm and fingers help with hooking carabiners, handling equipment, knotting line and adjusting buckles.
- High cuff design: A tall cuff makes the glove easier to don and helps it feel like one piece with the wetsuit.
- Part of a 3-thickness family: Seac also offers the Ultraflex glove in 2 mm and 5 mm thicknesses.
- Six sizes: Available from XS to 2XL to fit a wide range of hand sizes.
- Reinforced seams: Built for durability under the repeated use of freediving and spearfishing.
- Lightweight build: Minimizes hand fatigue during extended underwater activity.
- Easy on, easy off: Snug fit and high cuff are designed for frequent use without a struggle to get the gloves on or off.
| Brand | Seac |
| Model | Ultraflex |
| Neoprene | Ultra Stretch neoprene |
| Thickness (this listing) | 3.5 mm |
| Thickness options in family | 2 mm, 3.5 mm, 5 mm |
| Outer surface | Micro rubber inserts for grip and protection |
| Cuff | High cuff for easier donning, feels as one with the wetsuit |
| Sizes available | XS, S, M, L, XL, 2XL |
| Palm circumference, XS | 19 to 20.5 cm |
| Palm circumference, S | 20.5 to 22 cm |
| Palm circumference, M | 22 to 23.5 cm |
| Palm circumference, L | 23.5 to 25 cm |
| Palm circumference, XL | 25 to 26.5 cm |
| Palm circumference, 2XL (XXL) | 26.5 to 28 cm |
| MPN (XXL shown) | 0160056067125A |
⚠️ 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 thickness of dive boots, gloves, or hood should I choose?
As a general rule, thicker neoprene insulates more, so colder water pushes you toward thicker accessories, but fit, dive length, and personal cold tolerance matter as much as the millimeter number. Divers commonly lose a great deal of heat through the head, so a hood is often the highest-value warmth upgrade for the money. Remember that every added piece of neoprene also adds buoyancy you will need to account for.
How should dive boots fit?
Boots should fit like a snug athletic shoe, with no heel lift and no crushed toes; a little water inside is normal, a sloshing pocket is not. Try them on with the socks you would actually dive, and remember your fin foot pocket has to accommodate the boot. Hard-sole boots protect on rocky shore entries, while soft-sole boots are lighter and pack smaller for boat and travel diving.
How should dive gloves fit?
Gloves should be snug across the palm with fingertips reaching the ends without bunching, since trapped air and loose fingertips destroy dexterity. Thicker gloves are warmer but make buckles, clips, and inflator buttons harder to operate, so choose the thinnest glove that keeps you comfortable in your conditions. Try working a clip or buckle while wearing them before you commit.
How should a dive hood fit?
A hood should seal around the face and neck without restricting your throat or jaw, and lie flat on your head without pulling the mask strap out of position. A loose hood flushes cold water continuously, while an overly tight one is distracting and uncomfortable. Many hoods have a vent to release air trapped during descent, so check yours and burp out any trapped air before you go down.
Why does new neoprene feel so tight?
New neoprene compresses and relaxes with use, so a boot, glove, or hood that feels firm out of the packaging usually settles slightly after a few dives. It should still be snug afterward rather than loose, because neoprene that stretches into a loose fit was probably oversized to begin with. Buy for a snug fit when new, but never for a fit that restricts circulation or breathing.
Do I need to change my weighting when I add a hood, gloves, and boots?
Yes, because every piece of neoprene you add is buoyancy, and a hood, boots, and thick gloves together can shift your weighting noticeably. Do a proper buoyancy check any time you change your exposure protection rather than assuming your usual weight still works. The weight-check procedure is covered in your training, and a dive professional can help you re-do it.
How do I care for dive boots, gloves, and hoods?
Rinse them inside and out in fresh water after every dive day, since they hold sweat and salt more than any other gear, and dry them fully inside-out before packing. Dry them out of direct sunlight and never on a heater, because heat hardens neoprene and weakens glued seams. Store them dry and unfolded, as damp neoprene sealed in a bag is how gear picks up a permanent smell.
What is the difference between the 2 mm, 3.5 mm, and 5 mm Seac Ultraflex gloves?
All three share the same Ultra Stretch neoprene, micro rubber coverage and high cuff, and differ in thickness: 2 mm, 3.5 mm and 5 mm.
How do I measure my hand for Seac Ultraflex glove sizing?
Measure the circumference of your palm, not your wrist, with a flexible tape. Seac's published ranges for this glove are XS at 19 to 20.5 cm, S at 20.5 to 22 cm, M at 22 to 23.5 cm, L at 23.5 to 25 cm, XL at 25 to 26.5 cm, and 2XL at 26.5 to 28 cm. Choose the size whose range contains your measurement.
Are the Seac Ultraflex gloves only for freediving and spearfishing, or can scuba divers use them too?
They are built for freediving, spearfishing and general scuba use. The grip and high cuff support dexterity tasks like handling a speargun or catch and adjusting buckles.
