Body Glove Men's 4/3mm Vapor Back Zip Full Body Wetsuit, XX-Large Should fit snug, but not too tight MATERIALS: 100-Percent vapor stretch water repellent technology throughout; 100-Percent fluid seal seams and thermo fiber from the chest down CONSTRUCTION: Updated pattern for added comfort and streamlined aesthetic; Vapor lock seams with 100-Percent interior Fluid Seal; Anatomically cut; Unfinished collar, wrist and ankle cuffs with fused edges; Double lock S-Seal wrists and ankles Interior elastic key cord Right arm exterior zip key pocket Nano Tritec kneepads, Short Zip back entry