OS Systems offers two waterproof/breathable models, the ful featured SPLB-SROB, and the economy SPLB-SRBEC, in 19 standard sizes, plus full custom sizing. In addition, OS can individually design and make your drysuit with the features you choose. All OS waterproof/breathable SARR Surface Water Drysuits include: (1) Material: MIRCO™ fabric is a three ply laminate consisting of microdenier, nylon/polyester base fabric, a waterproof/breathable microporous barrier membrane, and a tricot fabric inside layer. (2) Seams: Seams are double stitched for strength, and fusion sealed on the inside for water tightness. (3) Design: Designed with Freedom Cut™ features for complete and unrestricted freedom of movement. Sidearm Panel Gussets™ extend all the way from each elbow, down the arm to the waist. The Crotch Gussets™ extends from one ankle through the crotch and all the way down to the opposite ankle for unparalleled fit, function and freedom of movement. (4) Entry: Front diagonal entry waterproof zipper for easy self entry and waterproof integrity. (5) Wasit: Internal AC Waist™ (Adjustable Cord Waist™) streamlines the fit and reduces drag. Everything is internal to prevent potentially dangerous snagging. (6) Suspenders: Internal installed suspenders improve fit and function. (7) Color: Fiesta Orange (8) Safety: Reflective tape - the SPLB-SRBEC has (1) 1" SOLAS horizontal stripe just above the wrist. (9) Reinforcing: Cordura® Butt Pad and Knee Pads for protection, strength, and improved slip control. (10) Seals: LongLife Latex™ rubber neck, wrist, and/or sock seals are easily replaceable. (11) Footwear: The SPLB-SROB comes with waterproof/breathable fabric socks. The SPLB-SRBEC comes with latex socks. Do not walk in the drysuit socks without protective footwear. (12) Testing: Each drysuit is individually tested under pressure and under water to guarantee water tightness. (13) Warranty: Two year limited warranty. THE SPLB-SROB includes these additional features: (1) Safety: Reflective Tape - (2) 1" SOLAS horizontal strips just above the wrist. (2) Elbows: Condura Elbow Pads for extra protection. (3) Fabric Socks: Choose Size. (4) Shin Guards: Neoprene padded Shin Guards inside the Knee Pads provide impact protection. (5) Zipper Covers: The entry zipper has neoprenepadded Cordura zipper cover for extra protection. (6) Overlays: Cordura/Neoprene Neck Wrap™ w/zipper, Wrist Wraps™, and Ankle Wraps™ protect the neck seal, the wrist seals and the fabric socks. (7) Model Shown: Includes optional men's style relief zipper, Small Bellows Pocket on the upper left arm, and Large Bellows Pocket on the outside of the right leg.