The Oneill Gooru 3mm Split Toe wetsuit boot is a new generation of boot that is 100% Liquid Rubber sealed, constructed from 100% Ultraflex neoprene with a fully sealed and watertight exterior coating, with a durable textured outsole, achieved by dipping the boot in Liquid Rubber. This is a stripped back boot offering maximum feel and comfort through Oneills precise anatomical fit. This boot sits between a conventional wetsuit boot and Oneills Heat Sock, except the Gooru benefits from a Split Toe design and you have a totally watertight boot. Size XS = US 5-7, Size S = US 7-9, Size M = US 9-11, Size L = US 11-12, ,