Baffin Men's Control Max Boots- Worn BrownCONTROL MAX is rated for adventurous pursuits in extreme cold temperatures. Polar Proven in some of the world's harshest climates, CONTROL MAX is not only technically superior, but also lightweight and flexible. Recommended during moderate levels activity, CONTROL MAX offers everything you need in a performance winter footwear companion. Insulation Level: Removable Comfort Fit multi layer inner boot system Waterproof Level: B Tek Dry Waterproof Base