The Outscape is a lightweight, 100% waterproof lace-up shoe, designed to keep you comfortable and enable you to get more done every day.- 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 ComfortbioDEWIX Footbed Insert Topcover with NZYM for Odor Control and Moisture Management