Bogs men's Bozeman Tall winter boots 71971 001 black Size 5 16 waterproof 6 mm full grain leather 6 mm full grain leather Double tongue for excellent fit and comfort 100% waterproofDurable hand lasted rubber with a four way stretch inner bootieMade with seamless construction – 30% lighter than comparable boots plus enhanced durabilityConstructed with 7mm Neo Tech waterproof insulationRebound technology in outsole provides lasting comfortLined with EveryDry and Bogs Max Wick to evaporate sweatFootbed features dual density EVA and DuraFresh for optimal comfortNon marking and self cleaning BioGrip chemical and slip resistant outsoleBogs Stabilizer provides natural fit and under foot supportComfort rated to 72ºF 60ºC