Lake MXZ303-X Winter MTB Shoe - Wide (46, BLACK/SILVER) closed upper shoe with 3-part front cover made of water-repellent PITTARDS WR 100 leather OUTLAST liner; water-repellent AIRPRENE shaft Toe box with THINSULATE insulation THERMASOL insole interrupts the cold bridge between pedal/cleat and foot thanks to air cushion insulation Finely adjustable BOA closure system