WATERPROOF: AQ waterproof & breathable lining keeps your feet dry CUSHIONED: Underfoot cushioning from EVA midsoles and the OrthoLite footbed ADVANCED GRIP: OPTI-STUD sole won\'t let you down BUILT TO LAST: Durable scuff resistant treated leather upper Berghaus Expeditor Ridge 2.0 Walking Boots are lightweight, comfortable and loaded with great technology, from their robust leather uppers to shock absorbing EVA mid-soles for underfoot cushioning. You can be sure of great grip thanks to their OPTI-STUD soles. Upper: 1.6-1.8mm Treated leather Outsole: OPTISTUD Walk-WB/OS outsole Midsole: EVA midsole Footbed: Berghaus Ortholite Lining: AQ waterproof membrane Leather is made in a tannery certified by the Leather Working Group for environmental performance