This style tends to run narrow, please order half a size up. Thanks! Conquer the cold in the Wanaka Waterproof Warm. The anywhere, everywhere, all-the-time boot for winter, the Wanaka Waterproof Warm combines comfort, warmth, and rugged outdoor style. HIGHLIGHTS 100% vegan, made from recycled and bio-sourced materials. Soft and plush, like a cozy winter blanket for your feet. Lightweight and flexible outsole feels like a street sneaker. Waterproof/breathable membrane keeps feet dry. Removable insoles mold to your feet or allow you to replace with your own. CONSTRUCTION Upper: Faux "leather" made with recycled plastic and PU blend Lining: Sherpa fleece made with recycled plastic Membrane: HBR membrane is PFC-free Insole: BLOOM Foam insoles made with layers of algae/EVA blend and natural cork Midsole: BLOOM Foam midsoles made with algae/EVA blend Outsole: Durable outsole made with natural rubber Laces: Sturdy laces made with partially organic cotton Weight: 12 oz per shoe SUSTAINABILITY 42 liters of water cleaned per pair through Bloom technology. 27 m3 of air cleaned through Bloom technology. Manufactured in Vietnam in our factories with ethical and environmental standards (BSCI certification). Sustainability certifications: Global Organic Textile Standard (GOTS), Global Recycled Standard, OEKO-TEX .