Seac Anatomic Neoprene Freediving and Spearfishing Socks 5mm
Seac Anatomic Neoprene Freediving and Spearfishing Socks 5mm - S (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 Anatomic HD Neoprene Dive Socks are 5mm neoprene socks designed by Seacsub for freediving, scuba diving and snorkeling, with a smooth-skin ankle cuff that maximizes adherence to the wetsuit leg and a reinforced instep that improves fit with both full-foot fins and open-heel fins with straps. They are sized S to 2XL, covering EU 38 to 46.
Who it is for
These socks suit freedivers, scuba divers and snorkelers who want warmer feet and less water flushing between the sock and the wetsuit leg. Because the smooth neoprene at the ankle seals against the suit and the reinforced instep is built to work with either full-foot (closed heel) fins or open-heel fins with a strap, they fit divers using either fin style rather than one or the other.
Key details
- Thickness: 5mm neoprene, part of the Anatomic HD line that also comes in 3.5mm and 7mm to match the suit and complete thermal protection.
- Material: high quality, durable neoprene fabric throughout.
- Ankle design: smooth neoprene skin on the inside of the ankle for maximum adherence to the wetsuit leg and reduced water passage.
- Instep: reinforced to improve the fit of both strap fins and full-foot fins.
- Sizing: 5 sizes, S through 2XL, dressing feet from EU 38 to EU 46.
Compatibility and sizing
The Anatomic HD socks are made to work with full-foot (closed heel) fins and with open-heel fins that use a strap. They are available in S, M, L, XL and 2XL, spanning EU 38 to 46.
DiveCatalog.com is an authorized Seac dealer and a dive shop in Irvine, California, open since 2003. Call 888-701-4017 or start a chat if you need help picking a thickness or confirming sizing with your fins.
- Hot feet design: the neoprene construction is built to avoid heat loss and keep feet warm during freediving, scuba diving and snorkeling.
- Ankle adhesion: smooth neoprene skin on the inside of the ankle maximizes adherence between the sock and the wetsuit leg, reducing the passage of water.
- 5mm thickness: this version uses 5mm neoprene, part of a line also offered in 3.5mm and 7mm to match different suits and thermal needs.
- Reinforced instep: improves the fit of both open-heel fins with straps and full-foot fins.
- Durable neoprene fabric: high quality material chosen for long-term durability in the water.
- Five size run: available in S, M, L, XL and 2XL, dressing feet from EU 38 to 46.
- Multi-use: suited to freediving, scuba diving and snorkeling activities.
| Brand | Seac |
| Product name | Anatomic HD Neoprene Dive Socks |
| Thickness (this listing) | 5 mm |
| Other thicknesses in the line | 3.5 mm, 7 mm |
| Material | Neoprene |
| Ankle construction | Smooth neoprene skin on the inside of the ankle |
| Instep construction | Reinforced for fin fit |
| Sizes available | S, M, L, XL, 2XL |
| Size range | EU 38 to 46 |
| Fin compatibility | Full-foot (closed heel) fins and open-heel fins with strap |
| Recommended use | Freediving, scuba diving, snorkeling |
⚠️ 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 thickness of Seac Anatomic sock should I pick, 3.5mm, 5mm or 7mm?
Seac offers 3.5mm, 5mm and 7mm so you can match the sock to your suit and complete your thermal protection; this listing is 5mm.
Will Seac Anatomic HD socks work with full-foot fins and with strap fins?
Yes. Seac built the reinforced instep on the Anatomic HD socks specifically to improve fit with both full-foot (closed heel) fins and open-heel fins that use a strap, so the same sock works across either fin style rather than requiring a different sock per fin type.
How do I choose the right size in the Seac Anatomic HD socks?
The Anatomic HD socks come in five sizes, S through 2XL, covering an EU 38 to 46 range; choose within that range.












