Actualy its just the regular kind you can get for about 50 bucks at any sporting shop.. for at the beach, or whatever. it feels about 3 mm thick.... think of a pair of jeans X 2 (for thickness). it grips you like a short-sleeved, short-leg unitard would... but its rubbery, thicker, more tactile on the skin; you can feel it almost holding you upright. the feel of the wetsuit is so difrent then ballet clothes, which i love... its hard to explain but fun trying :). [/i]