The Sphinx Pull-On Insulated Waterproof features:

• 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 of shoes, this purpose-designed technology delivers the kind of fit, feel and performance that’s unmatched in the industry.
• 100% RPET REPREVE® laces and webbing and quick drying recycled natural material 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 the proprietary waterproofing system, B-DRY, lets sweat escape while keeping moisture out.