FEATURES of the Jambu Women's Vista-Hyper Grip Waterproof Boot Micro-glass filaments provide traction on icy and wet terrains Antibacterial lining (200 gram weight) Inside shell is warm rated to -10° F Waterproof protection for all seasons Partially recycled outsoles Non-marking and partially recycled compressed Rubber Outsole for superior traction and durability Contoured Memory Foam Footbed for support and comfort Jambu's Waterproof and breathable membrane will keep your feet dry and warm during cold conditions SPECIFICATIONS of the Jambu Women's Vista-Hyper Grip Waterproof Boot Material: Waterproof tumbled nubuck, oily leather