The Bogs Charlie Mid boots will keep you cozy and comfortable all-winter long. 100 percent waterproof textile upper. 3mm Neo-Tech waterproof insulation helps keep feet warm and dry. Pull-on handles for easy off-and-on. DuraFresh bio-technology lining activates to fight odors for a fresher foot environment. Max-Wick moves moisture away to keep your feet dry and fresh. Rebound footbed for excellent underfoot cushioning and comfort. BioGrip rubber outsole with tread pattern prevents slipping. Temperature Rating: -22 degreesF/-30 degreesC Imported. Measurements: Heel Height: 1 in Weight: 11 oz Circumference: 14 in Shaft: 8 1 2 in Product measurements were taken using size 7, width B - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.