Design: Waterproof shell for reliable protection Water-resistant 100% recycled nylon upper features circular pattern and branded details In-Shoe Comfort: Microfleece liner keeps your feet comfortable Durability & Traction: Non-marking rubber lug outsole features signature Sperry Wave-Siping™ technology for enhanced traction on wet and dry surfaces Additional Details: Part of the SeaCycled™ Collection, which prioritizes sustainability