The Waterproof B2 6.5mm Semi-Dry Boots have an extra-long zipper for easy donning. The heels and toes are strengthened, and the boot has an angled design for less stress while finning. Hypothermia and Boots The body reacts to cold and heat by adjusting the bloodstream to the external parts of the body, like hands, fingers and feet. Any water temperature lower than the body temp will during the time of the dive affect your core temperature. Do not under-dress your feet. Keeping the feet warm is an old true formula against coldness; your mother told you so, didn’t she? Key features of Waterproof B2 6.5mm Semi-Dry Boots Tough 6.5mm Semidry Boot Angled Boot Shaft Boot-Grip Extra Long YKK Zipper Fin Strap Ridge Glideskin ID-Plate SKU: WP-108020 Waterproof B2 6.5mm Semi-Dry Boots - DirDirect