5mm Adrenalin Neoprene Boots. Durable 5mm Neoprene Boot # Comfortable Fitting # Excellent Grip Features a semi-rigid sole which gives excellent grip on all surfaces, quality stretch neoprene for a comfortable fitting boot and zip entry with non-corrosive YKK zips.
5mm thick neoprene gives will keep feet extra warm.
*For use with open heel (adjustable straps) fins only.