[FEAT] THE MULTI-USE ZIPPER KEY POCKET: AKA GET TO KNOW FUNCTIONAL SUPERIORITY

Jul 12, 2026
[FEAT] THE MULTI-USE ZIPPER KEY POCKET: AKA GET TO KNOW FUNCTIONAL SUPERIORITY

This is Chapter 02 of Get to Know Functional Superiority: A product education series that breaks down the utility & philosophy behind specific components inside every 00 BY XIIIG wetsuit

A suit with a proper key pocket is critical

Every surfer & multisport athlete knows this problem: you get to the lot, you lock the car & now you're holding a key with nowhere to put it. Leave it on the tire or under some rock & you're gambling. Stash your key in a wetsuit boot & now you're compromising comfort & functionality (not to mention digging around post-session with numb hands). 

00 BY XIIIG solves this by building a multi-use pocket into the leg of every 00 BY XIIIG wetsuit: a dedicated, zippered stash spot secured by a corrosion-resistant YKK #3 zipper

More than a pocket — a system

On the right leg of every 00 BY XIIIG fullsuit sits a multi-use zipper key pocket, built with a protective "pillow pocket" flap on top & a lanyard loop stitched inside. The pocket zips downward to close (which keeps water from pooling into the opening the way an upward-zipping pocket would). Aka: it's the difference between a pocket that stays sealed & one that slowly floods over a session in the water.

Inside, the lanyard loop means that your key isn't just floating loose in a pocket. Instead, it's tethered, so it can't slide out & disappear into the sand. Use it for a key, a card or any other small essential that you don't want to leave on the beach

Why the zipper matters more than you'd think

The pocket is only as reliable as what closes it, which is why we didn't default to a standard metal zipper here. Every 00 BY XIIIG key pocket uses a YKK #3 zipper: a lightweight, non-locking zipper with an enamel-coated pull.

Here's why that combination matters in saltwater specifically:

  • Non-locking & enamel-coated: Metal zipper sliders are built for indoor, dry-environment use — not for repeated saltwater exposure. YKK's enamel coating adds a protective layer over the pull & slider, resisting the chipping & corrosion that untreated metal hardware develops fast in salt & sun
  • #3 sizing: A #3 zipper is one of YKK's lightest coil sizes, chosen here for smooth, low-bulk operation on a small pocket where you need quick, one-handed access without extra weight on the leg
  • Built for the environment it lives in: Marine-grade hardware is engineered around one core problem: saltwater accelerates corrosion on standard metal fasteners far faster than fresh water or dry-land use. Plastic & coil-based zippers with corrosion-resistant coatings are the standard fix across marine & outdoor gear for exactly this reason — and it's why you'll find the same logic behind YKK's dedicated UV- & corrosion-resistant zipper lines used in marine & outdoor equipment

Translation: this isn't a pocket that looks good on day one & seizes-up by month three. It's built to keep functioning exactly like it did out of the box, after a multi-hour surf, season after season

Small parts, zero exceptions

"Invest in the best" is a uniform, premium and exacting standard that's applied to every 00 BY XIIIG wetsuit. It's the same thinking behind the YKK AquaSeal zipper covered in Chapter 01 of this product education series.

A wetsuit isn't just the rubber, the nylon & the fit. It's every small decision underneath: the taping, the seals, the hardware. And we don't cut corners on any of them. Big facts.

Real is real: most wetsuits don't even have a proper key pocket, let alone one engineered against saltwater corrosion

Shop the full 00 BY XIIIG lineup, every full suit built with this same key pocket system:

Or browse the entire 00 BY XIIIG wetsuit collection & see how every detail — down to the smallest zipper — is built to the same standard

FAQ: Wetsuit Key Pockets & Zipper Hardware

Do wetsuits have a pocket for a key?

Many of them do not. And even the one's that do provide something that is unquestionably suspect in its design. 00 BY XIIIG wetsuits include a built-in multi-use zipper key pocket on the right leg, with a protective "pillow pocket" flap & internal lanyard loop -- so you're not stuck stashing your key for every burglar to see 

Why does the pocket zip downward instead of upward?

Zipping downward to close keeps water from pooling directly into the pocket opening the way an upward-closing zipper can, helping keep the contents drier through a session. Gravity is also a real thing, even in the water

Why does saltwater corrode zippers so fast?

Standard metal zipper hardware isn't built for repeated saltwater exposure — salt accelerates corrosion far faster than fresh water or indoor use, which is why marine-grade gear relies on coated or non-metal zippers. Knowing is half the battle

What's the difference between a locking & non-locking zipper?

A locking (auto-lock) slider stays fixed in place until pulled. While a non-locking slider moves freely along the chain. Non-locking, enamel-coated hardware is common in marine & outdoor gear because it's lightweight & resists the chipping that leads to corrosion

Do all 00 BY XIIIG wetsuits have this key pocket?

Yes. Every 00 BY XIIIG full wetsuit, from the 3/2MM through the Hooded 5/4MM & the PICTA Multisport line, includes the same key pocket with a YKK #3 zipper


This is Chapter 02 of Get to Know Functional Superiority. Catch up on Chapter 01: The YKK AquaSeal Zipper if you missed it.