De Soto T1 First Wave Triathlon Bibjohn Wetsuit - FWB2-2017 neoprene Stretchy 5mm thick rubber starts at the ankles, goes up to the crotch and around the sides of the hips to float the legs and hips more than any other wetsuit. Low profile 2mm Bib straps with soft Lycra trim go over the trapezius (base of neck) to allow unrestricted reach, prevents tired shoulders, and aids in faster swim times. GreenGoma #9 Rubber with Super Composite Skin makes the First Wave the warmest, fastest, most durable, flexible, buoyant, and the most comfortable wetsuit in the world today. Less-toxic bonding agent for people with skin sensitivities Angled leg openings for faster and easy removal. Longer seam tape for self-customizing leg length. Zipper is lighter weight and corrosion resistant. Lined with 4-Way stretch Nylon Lycra for comfort and to minimize chafing. Seams are glued and blind-stitched, making them more durable than the rubber itself. Sleek graphics, no gimmicks. Sold as separates for a true customized fit. Chlorine resistant treatment, but not recommend for repeated use in chlorinated water. The Bibjohn is 5mm thick from the oval ankle openings up to the crotch and up the sides of the hips. From that seam up, the Bibjohn is 2mm thick. This includes the midsection around the stomach, low back, as well as the bib straps that extent up the spine in back and up the chest in front. It is designed this way so when you wear any of our T1 tops, the total rubber thickness remains less than 5mm thick. Triathlon racing legal. Whether you like to swim for exercise or are on the swim course of a Triathlon, T1 Wetsuits offer you speed, comfort and buoyancy that will make swimming pure pleasure! Please do NOT assume your size. PLEASE REFER TO THE GENDER SPECIFIC SIZE CHART IMAGE ON THE LEFT FOR ACCURATE SIZING GUIDANCE. STILL IN DOUBT? ASK US! Lighter weight and corrosion resistant zipper Less-toxic bonding agent for people with skin sensitivities Stretchy 5mm thickness to the hips floats the legs and hips more than any other wetsuit. 2mm Bib straps go over the trapezius (base of neck) = no limited reach, no tired shoulders, and faster swim times. GreenGoma #9 Rubber with Super Composite Skin rubber makes the First Wave the warm, fast, durable, flexible, and buoyant. Chlorine resistant treatment, but not recommend for repeated use in chlorinated water. Eliptical leg openings for faster and easier removal, longer seam tape for self-customizing leg length, and lower profile Bibjohn straps with soft Lycra trim.