KEEN Men's Revel 4 Polar Mid Waterproof Winter Boot – Dark Earth/Caramel Cafe, UK 9

WATERPROOF: KEEN DRY waterproof breathable membrane keeps feet dry and comfortable all day long by allowing vapor out without letting water in INSULATION: KEEN.WARM insulation made with recycled plastic bottles works with thermal heat shield rated -25°F/-32°C for 365 degrees of warmth TRACTION: KEEN.FREEZE rubber outsole provides high traction grip in cold environments and on rocky surfaces; 5mm multi directional lugs deliver added traction; Non marking rubber outsoles leaves no trace or imprints when walking indoors SUPPORT & COMFORT: External stability shank offers lightweight support for improved mobility and torsion control on uneven surfaces; Cushioned collar reduces irritation and discomfort around ankle CARE TIPS: Gently brush the boot with a soft bristle brush or hand towel to remove loose dirt and debris; Treat stains by lightly rubbing a gum eraser in a circular motion over the location and lightly brush afterward