Keen Circadia Waterproof Boot - Men'sWhatever winter hiking looks like for you, warmth, comfort, protection, and traction are non negotiable must haves. So we built an insulated, waterproof, grippy hiker that checks all the boxes. All hike. No compromises. Warm and Dry: 200g of KEEN. WARM insulation rated to 25F and a KEEN. DRY waterproof, breathable membrane keep your feet toasty and dry. Better Leather: Environmentally preferred leather upper is lighter on the planet. Lightweight