Features:- Upper made with Premium Timberland® Leather and synthetic leather- Upper made with waterproof Premium Timberland® Leather and synthetic leather- Rustproof speed lace hardware with lace hooks at top- ReBOTL™ fabric lining- OrthoLite® footbed- Compression-molded EVA midsole- Rubber rand- Rubber lug outsoleTechnology:ReBOTL™ Insulation:- Billions of bottles across the globe are collected, recycled and turned into RPET yarns that we then use to make products, to help reduce waste. Footwear products with ReBOTL™ material contain at least 50% recycled plastic.GreenStride™:- Our GreenStride™ comfort soles are made of 75% bio-based materials like sugar cane and Responsible Natural Rubber from trees. GreenStride™ innovation provides one of the most eco-conscious and comfortable experiences we've ever invented.