Waterproof knit upper with EVA midsole and rubber outsole for traction makes this a year round hiker. Waterproof knit mesh and TPU toe cap keeps out water for a light and dry hiking experience Age - Adult Care Instruction - Spot Clean Insole Description - Breathable Open Cell PU moves moisture from foot for a cooler, healthier footbed. Insole Material - Open Cell Outsole Description - EVA midsole for lightweight comfort and a high traction rubber outsole for rugged terrain Outsole Material - Rubber Product Closures - Lace Size Description - M = Medium (B) N = Narrow (AA) W = Wide (D) 2E = X-wide (2E) 4E = XX-wide (4E) Size Fit Information - True to Size Waterproof - Waterproof Heel Height - 1.25 Use - Hiking Technologies Medicare Approved:These styles have been approved for reimbursement under the Medicare Therapeutic Shoes for Persons with Diabetes Benefit (also known as the Therapeutic Shoe Bill). Removable Footbed:These styles feature footbeds that can be removed to accommodate custom orthotics. Waterproof:Feet will stay warm and dry with these styles that have been specially designed to keep water out with our Sealtex(R) bootie or laminate construction.