Insoles made with Bloom Algae technology use sustainable algae biomass without compromising durability or comfort. Molded to match the specific shape and construction of every pair we make, this purpose-designed technology delivers the kind of fit, feel and performance that’s unmatched in the industry. 100% recycled polyester laces and webbing, and quick drying 100% recycling polyester lining and 50% recycled waterproof lining help us lighten our impact on the planet. 200 gram PrimaLoft BIO insulation. PrimaLoft has set sustainability forward with the first-ever biodegradable*, 100% recycled synthetic fiber, for insulation and fabric applications. Innovative Technology specifically engineered and designed to perform on wet ice. There’s no denying feet sweat and trails can get muddy. There’s also no denying the ability of our proprietary waterproofing system, B-DRY, lets sweat escape while keeping moisture out. Make the most of the hiking adventures wearing these cool and highly functional Oboz Sphinx Mid Insulated B-DRY. Oiled waterproof nubuck leather and abrasion-resistant ripstop textile upper. Textile lining and removable insole. PrimaLoft Bio insulation to ensure utmost warmth. B-DRY waterproof membrane. Lace-up closure. Round toe. Iconic brand name logo patch on the tongue and heel counter. Pull tab for added convenience. Durable rubber outsole. Imported. Weight of footwear is based on a single item, not a pair.