The windchill biblong with pad by endura has a breathable windproof membrane across the front of the leg ankle and crotch with teflon ht treated thermolite for insulation and comfort the supportive mesh upper with high stretch lycra bound straps keeps the tight in place the updated mens 600 series italian stretch pad features continuously variable profile cvp technology and is sculpted from a single block of foam with gel inserts for extra comfort a trs perforated foam dermis layer