MENS SIZE M, GLUED AND BLIND STITCHED, 4/3MM, CHES. The O'Neill Men's Superfreak FZ 4/3 Steamer wetsuit has GBS seam construction and a super-flexible combination of Ultraflex DS andFluidflex materials, so the SuperFreak keeps the water out and keeps you warm like no other wetsuit ever offered at this price level. One more freak of nature for your enjoyment from your friends at O'Neill. The F.U.Z.E. (Front Upper Zip Entry) closure system uses the same zipper technology as the highly rated Z.E.N. Zip closure keeping you dry without restricting flexibility. With Ultra minimal Seam Design you get insane flexibility, fit and warmth using a unique design which utilizes less seams. The integrated side key pocket means your key is easy to access and completely secure.Product Features60% Ultraflex DSF.U.Z.E Closure System with longer zipUltra Minimal Seam DesignGlued and Blindstitch Seam Construction (GBS)360 Degree Interior NeckDouble Super Seal NeckNew side pocket Three Drainage HolesBlack-Out Zipper