Design: 100% recycled waterproof membrane seals out water and lets moisture escape Waterproof suede leather and 100% recycled non-wicking mesh upper Metal hook with traditional lace closure ensures a secure fit every time 100% recycled laces and webbing Bellows tongue comfortably protects foot from debris In-Shoe Comfort: Removable PU footbed for all day comfort 100% recycled mesh footbed cover FloatPro(TM) Foam midsole provides lasting lightweight comfort Durability & Traction: Vibram(R) Ecostep Recycle outsole designed with 30% recycled rubber which provides added durability and improved grip on wet and dry surfaces Protective and abrasion resistant rubber heel and toe cap for added durability on the trail Rock plate for protection Additional Details: Weight (per shoe): 12.34 oz Lug: 4 mm Drop: 10 mm BLOOM(R) performance foam is made of algae biomass, transforming green water into clean water in the process