Wraparound Velcro closure at ankle for improved fit. Increased rubber reinforcementacross top of foot. • 5mm neoprene for warmth • Wraparound, non marking natural rubber soles for improved grip • Reinforced heel, toes and bridge area for increased support • Non ferrous zip • Velcro zip lock • Neoprene gusset behind zip to reduce water ingress • Blind stitched seams for comfort and flexibility