I'm a vet and have used the mickey mouse boots before. they are the warmest thing on your feet. your feet will sweat though, but never get cold.the traction is not very good as the boot is somewhat rounded on the bottom. i wear size 12 shoes but use 14 in hunting boots just so there is room for my toes and an air pocket. wool socks are my favorite too. get Mickie's a size or two bigger. it takes an air pump to pump them up and they do get tight from expansion.