Defiance Neoprene Wetsuit - The seams of this wetsuit are a flatlock stitch which help it to sit more flat inside and out. A great wetsuit to be out on the lake or in the ocean with. Aqualite Flex Neoprene Mesh Skin(Smoothie) Flatlock Stitched Seams UV PRotective Fabrics Glide Skin Seals Lock-out Zip Closures Rolled and hemmed Cuffs