The Solden is guaranteed to keep you warm & comfortable in the worst conditions possible. Quality leather has been used along with natural wool which help trap the temperature & keep it inside your boot making walking in them a treat. Skidding or slipping on ice or even on slippery surfaces can be quite dangerous & a health hazard. To negate this hazard, Solden has a nonskid rubber soles which gives you additional grip for wet & slippery surfaces.