Feel at home in ice-laden mountain towns wearing Oboz's Andesite Insulated Boots. Expect absolute traction from their highly technical XS Trek outsoles with Arctic Grip lugs to handle wet ice. They're built to a mid-profile construction with laces and webbing made from recycled fibres. These Andesites are insulated with Primaloft Bio which will mostly biodegrade* when it reaches the end of its lifecycle and is discarded in the right environment. They also contain BLOOM - an algae-blended resin containing a significant fraction of algae biomass and bio-based additives. Rise has a renewable content of at least 45%, offsetting a significant portion of traditional EVA required for footwear foams. When you buy a pair of Oboz, they plant a tree as part of the One More Tree project with Trees for the Future. *93.8% biodegradation in 646 days under ASTM D5511 conditions (landfill environment); 76.6% biodegradation in 793 days under ASTM D6691 conditions (marine/ocean environment). The stated rate and extent of degradation do not mean that the product will continue to degrade.