100% Waterproof; Muckskin Flexible Neoprene with Abrasion Resistant Rubber Coating; Guarden Rubber Toe and heel for Durability and Extended Wear; Breathable Mesh Lining Facilitates Air Circulation to Improve Comfort and Reduce heat and Moisture; Dual Density Footbed with Memory Foam for Long Lasting Comfort; bioDEWIX Footbed Insert Topcover with NYZM for Odor control and Moisture Management; Lightweight Midsole for All Day Comfort and Support; Self-Cleaning Rubber Outsoe for Optimal Traction and Reliability; Comfort Range: Sub Freezing to 65F / 18C