Waterproof D9X Men’s Breathable Ultra-Light Drysuit

The Waterproof D9X is a men's shell drysuit built from breathable laminated nylon instead of neoprene. The fabric is listed as AquaMax 330 denier Cordura Nylon in a quad-lam construction, and the suit itself as ultra-light. It is a cold-water suit for divers who would rather carry the warmth in their undergarment than in the suit.

Who this suits

This is a suit for a diver who already understands layering, or who is training towards a drysuit ticket and knows what water temperatures they actually dive. A shell suit keeps water out and does almost nothing to keep heat in. Your undergarment does that job.

It also suits divers who travel. Ultra-light is the listed weight class, and a membrane suit is easier to live with in a bag than a thick neoprene one.

Skip it if you are brand new to drysuits and expecting the suit to keep you warm the way a thick wetsuit does. You will be cold and you will blame the suit. Skip it too if you dive warm water and are only curious. A drysuit is maintenance, seals and training, and it only pays back when the water is genuinely cold.

What 330 denier and quad-lam actually buy you

Denier is thread weight. The higher the number, the thicker the yarn and the more abrasion the fabric absorbs before it wears through. 330 denier Cordura sits in the middle: tough enough for boat decks, shot lines and shingle beaches, and still light and flexible enough that you are not fighting the suit to bend a knee.

Quad-lam is the other half. The listing names the fabric as Cordura Nylon Quad-Lam and gives no more detail on how it is built. The listing states the suit is breathable, which is the practical difference from a coated shell: sweat vapour moves outward while you are kitting up in the sun or finning against current, instead of soaking your undergarment from the inside.

In the water the payoff is control. Thin base layer for cool water, thick thermal for a properly cold dive, same suit either way.

The zipper, and why it matters on a drysuit

Entry is by a TIZIP MasterSeal 10, described in the listing as a light and flexible dry zipper.

The zipper is the part of a drysuit most likely to end a dive day. A flexible dry zipper bends with you when you reach behind your shoulder or twist into a car seat, and it takes less force to close than a stiff metal one, which matters when you are closing it yourself on a windy boat. It still needs lubricating and rinsing, like every dry zipper.

Reinforcement, pockets and suspenders

The arms carry double layers of abrasion resistant Cordura. Forearms are where a drysuit goes first, because that is what drags along wreck plate, ladder rungs and the gravel you kneel on. Doubling the fabric there is a sensible place to spend weight.

Storage is double leg pockets with double cord loops plus drainage mesh. The cord loops let you open a pocket with a dry glove or a thick wet glove without hunting for a tab. The mesh means a pocket that floods empties out again instead of carrying a bag of water down the line with you.

The suit has integrated adjustable suspenders, so the legs stay where they belong instead of sagging, and you can tune the trunk length to your body rather than to the size chart's idea of it. The listed cut is a comfortable fit, which is what you need when there is an undergarment underneath: a compressed undergarment loses most of its insulating value.

Which version this page covers

This page covers the men's cut of the D9X. The listing does not break out sizes, seal materials or boot options, so size against Waterproof's own chart rather than your normal clothing size, and confirm the seal and boot specification with the retailer before ordering.

The bottom line

A 330 denier Cordura quad-lam shell with a TIZIP MasterSeal 10, doubled forearms and draining leg pockets is a well-specified cold-water suit for a diver who knows how to dress under it. The construction choices are all in sensible places.

It is not a warm suit on its own, and it is not a suit to buy blind. The listing gives no size chart, no seal material and no boot specification, so those three come from Waterproof or the retailer before you order, not from this page.

Specifications