MuckBoots Men's Excursion Pro Low Shoe Synthetic Imported Extended rubber coverage for added protection Rubber sole Heel measures approximately 1" 4 millimeter CR flex foam bootie with four way stretch nylon^100 percent waterproof lightweight and flexbile^Sock liner to reduce friction and heat build up^Express cool lining material keeps your feet cool in warm weather and is antimicrobal^New lightweight ethylene vinyl acetate midsole with rubber pods for optimal traction and support