Materials: a three ply laminate Cordura© nylon as the base fabric, a waterproof breathable barrier membrane and a tricot fabric inside layer.

Seams: Seams are double stitched for strength, and fusion sealed on the inside for water tightness.

Design: Designed with Freedom Cut features for complete and unrestricted freedom of movement. Sidearm Panel gussets extend from the Elbow Pad all the way down the arm to the waist. The Crotch gusset extends from one ankle through the crotch and all the way down to the opposite ankle for unparalleled fit, function and freedom of movement.

Waist: Internal AC WaistTM (Adjustable Cord WaistTM) plus installed suspenders streamlines the fit and reduces drag. Everything is internal to prevent potentially dangerous snagging.

Entry: Front diagonal entry #8 brass tooth zipper for guaranteed water tightness.

Zipper Covers: The entry zipper and the optional men’s style relief zipper have neoprene padded Cordura zipper covers for extra protection.

Reinforcing: Cordura Elbow Pad, Butt Pad, and Knee Pads for protection, strength and improved slip control. Shin Guards, neoprene padding inside the Knee Pads, provide additional impact protection.

Recoil Pad: A 5.0 mm. neoprene Recoil Pad protects the right shoulder when using high powered weapons.

Color: Black.

Overlays: The neck seal is protected by a Neck WrapTM w/zipper. Wrist WrapsTM protect the wrist seals and Ankle WrapsTM protect the fabric socks.

Seals: Longlife LatexTM commercial grade, natural gum, latex rubber neck and wrist seals are thicker and more durable (minimum thickness is .030″). Made in the USA. These seals are also easily replaceable. Seal specifications and replacement instructions are available at drysuit-repair-instructions , and seals. 

Footwear: Waterproof/breathable fabric socks are standard. OS SYSTEMS recommends using non-attached boots or footwear for the best individual fit, the best lace up ankle support, and the best walking and traction sole.

Testing: Each drysuit is individually tested under pressure and under water.

Warranty: Two year limited warranty. See Warranty Page

Sizing Chart: See USA Size Chart page. All Custom Sizing Options available.  


Neoprene Neck Seal – Instead of latex rubber neck seal.  Warmer, and more durable against heat, petrochemicals and tearing. Lasts much longer. Watertight sealing and stretch memory are a little less effective.

Relief Zipper – Men’s’ style.

Bellows Pocket – Sizes S, M, & L. Size Small is for the upper arm, canted at a 30 degree angle forward for easy access. Size Medium is for the front of the thigh. Size large is for outside

Immersion Style – Fast draining instead of water holding, Cordura bellows pocket with Velcro sandwich closure system, key lanyard, and drain mesh bottom.

MARSEC Style – All Cordura, with drain grommets, and w/o mesh bottom, stronger to hold ammo, etc. Size small has loop Velcro sewn on Cordura to attach unit patches. Designed for occasional, not constant, immersion.