Keen Revel IV Mid Polar Men's Winter Hiking Boots, Waterproof Insulated, Black/Grey

When winter trails turn icy and the mercury plunges, most hiking boots surrender—but the Keen Revel IV Mid Polar stands its ground. Built around a 200g KEEN.WARM insulation package and a thermal heat shield footbed, this boot locks in warmth down to a staggering -40°F / -40°C, while the KEEN.DRY membrane seals out slush and snow. The result is a mid-cut winter hiker that feels less like a clunky snow boot and more like a precision tool for cold-weather missions.

Highlights

• KEEN.DRY waterproof, breathable membrane keeps feet dry without overheating
• 200g KEEN.WARM recycled PET insulation rated to -40°F / -40°C
• KEEN.POLAR traction rubber outsole with 5mm multi-directional lugs grips ice and packed snow
• Thermal heat shield footbed reflects body heat back to the foot
• KEEN.PROTECT rubber toe bumper shields against rocks and frozen debris
• LWG-certified leather and PFC-free water repellent for a lighter environmental footprint

In daily use

Lace up the Revel IV Mid Polar and you immediately notice the generous original fit—plenty of room in the forefoot for thick winter socks, yet secure through the heel. The dual-density EVA midsole absorbs shock on frozen ground, while the stability shank prevents twisting on uneven terrain. Speed hooks make adjustments quick even with gloves on. From snowshoeing to winter day hikes, the boot remains remarkably agile for its warmth class, and the eco anti-odor treatment keeps things fresh after long miles.

Full specifications

• Product type: Winter hiking boots
• Gender: Men's
• Waterproofing: KEEN.DRY waterproof, breathable membrane
• Insulation: 200g KEEN.WARM recycled PET insulation
• Temperature rating: -40°F / -40°C
• Upper material: Waterproof leather and performance mesh
• Outsole: KEEN.POLAR traction rubber with 5mm multi-directional lugs
• Midsole: Dual-density compression-molded EVA
• Footbed: Thermal heat shield footbed
• Closure: Traditional lace-up with speed hooks
• Shaft height: Mid-cut
• Toe protection: KEEN.PROTECT rubber toe bumper
• Shank: Stability shank
• Sustainability: LWG-certified leather, PFC-free water repellent, eco anti-odor
• Fit: Original fit (generous forefoot space)
• Weight (pair): 1.19 kg (2 lbs 10 oz)
• Recommended activity: Winter hiking, snowshoeing, cold weather use

Final note

For hikers who refuse to let winter dictate their adventures, the Keen Revel IV Mid Polar delivers uncompromising warmth, traction, and protection—without the bulk.