DESCRIPTIONS Ultra adventure.A new look at our men’s classic waterproof boots with natural comfort.New GreenStride™ soles are made using 75% natural sugar cane and rubber from trees.TimberDry™ linings are made of at least 50% recycled plastic diverted from landfills and the upper is made with Better Leather from a tannery rated Silver for its environmental practices. PRODUCT DETAIL • Made with premium full-grain Better Leather from a sustainable tannery rated Silver for its water,energy,and waste management practices • Durable ReBOTL™ fabric linings made of at least 50% recycled plastic • GreenStride™ sole made of 75% renewable sugar cane and responsibly sourced rubber • TimberDry™ waterproof membrane made with 50% recycled plastic • Removable anti-fatigue footbed for cushioning • Protective rubber rand • Rubber lug outsole for grip