Made of abrasion-resistant Quantum PERTEX with a durable DWR waterproof finish. The filling is made of Primaloft Black Thermoplume hollow fiber, which provides exceptional warmth even when wet. The bottom has foam insulation. The tough and durable outsole and sidewalls are made of Hypalon. The lining is made of warm, brushed microfleece. The ankle lacing is very comfortable and prevents heat from escaping. Durable and strong Hypalon material. Packing bag.