KEEN’s new winter warrior, the Revel IV Polar, creates a new standard for performance alongside environmental stewardship. Consciously created, the mesh collar, tongue and tongue gusset of this premium boot all contain Recycled P.E.T. plastic, with KEEN.WARM in the upper also featuring Recycled P.E.T. insulation, both new developments in the collection for the FW20 season and a significant progress step to help keep single use plastic out of landfill.

The upper of the Revel IV is constructed in premium, environmentally preferred leather sourced from LWG-certified tanneries that operate on a closed loop basis to reduce water and energy usage, an industry gold standard that completely eliminates waste water.  The upper has been further treated with a PFC-free durable water repellent that is safe, effective at repelling water and dirt and non-toxic, so protecting the planets’ sensitive ecosystems.

Inside the boot, a pesticide-free Eco Anti-Odor treatment uses only natural materials to break down odour in sweat, eliminating pesticides and biocides from going into the environment, so feet stay as fresh and clean as your conscience.

Seriously equipped to keep feet warm in even the most extreme conditions, the Revel IV also features KEENs innovative Heat Trapolator system, a three-layer system of cold-fighting technology delivering 360 degrees of heat retention whilst locking out the freeze underfoot.  Boasting a KEEN.POLAR Traction outsole which features micro-glass fibers in a flexible rubber sole for a micro-cleat effect on icy and wet surfaces, the Revel IV digs into challenging winter terrain with confidence.

Choose from a high cut edition for maximum protection, €159.95, or a Mid cut priced at €149.95, the Revel IV Polar is available in men and women’s specific models.