Seac Tekno Hood 5Mm Is A Perfect Product For Scuba Diving. Made In Special Ultraflex/Thermal Fiber Material That Ensure Great Comfort And Warm Temperature. Smoothy Surface Slipped On The Neck For A Better Adherence On The Diving Wear To Reduce At Minimum The Water Infiltration. Hood Has Provided Of Micro Holes To Let Your Head Breath Without Getting Cold. It Is Usable With Any Kind Of Wetsuits And Drysuits Of Different Thickness. Seac Tekno Hood Is Available In The Following Sizes: Xs-S, M, L, Xl, Xxl-Xxxl.