Superfeets Trophy Trail Insoles deliver maximum comfort and scent reduction when youre scouting and checking trail cams during the early season. An exclusive ScentLok layer reduces game-spoking odors produced by your feet. Aerospring impact foam and Silent Step stabilizing shape provide comfort and stability on long hikes. Ventilated forfeet circulate cooling air with every step. Ground-Sense impact dampening absorbs impact with every step. Sizes: S-XXL. Superfeet Sizing ChartSmall Medium Large XL 2XL Mens 5.5 - 7 7.5 - 9 9.5 - 11 11.5 - 13 Womens 4.5 - 6 6.5 - 8 8.5 - 10