Size: Medium Tall Material: AX2 Superflex neoprene, chest and back paneling, [lining] hollow fiber thermal lining Water Temp: 46 -54° F Thickness: 5/4mm Zip: back-zip entry w/internal barrier Delivers premium warmth and flexibility at low price 5/4mm thickness keeps you warm in colder surf destinations AX2 SuperFlex neoprene for full flex and unbelievable warmth Internal hollow fiber thermal lining kills the wind chill Glued and blind stitched seams won't let cold water through Strategically placed seams won't inhibit movement or flex Rear-zip opening with internal barrier to keep water out