Muck Boots Muck Boot Muck Apex Lace Up Waterproof Boot Material Content: Rubber/Neoprene, Rubber/Neoprene, Rubber/EVA Washing Instructions: Wipe Clean Lining: Other Materials Material: Other Materials Sole: Other Materials Upper: Other Materials 100% Waterproof 4mm Neoprene Bootie for Comfort and Performance Lace-up Construction for a Tailored Fit Durable Metal Hardware with Speed Hooks for Rapid Lacing Breathable Air Mesh Lining Facilitates Air Circulation to Improve Comfort and Reduce Heat and Moisture Dual Density Footbed with Memory Foam for Long Lasting Comfort bioDEWIX Anti-Microbial Footbed Topcover with NZYM for Odor Control and Moisture Management Lightweight EVA Midsole for All Day Comfort and Support Lugged Rubber Outsole for Durable All-Terrain Traction