The Bogs Workman Mid boot will keep the mud and rain at bay so you can perform at your best. Natural rubber upper laid over a four-way stretch bootie with 7.5mm Neo-Tech waterproof insulation. 100 percent waterproof. Seamless construction is 30 percent lighter and more durable, allowing for less foot fatigue and more comfort. Rebound technology in midsole provides lasting comfort Interior features DuraFresh bio-technology that activates to fight unwanted odors. Bogs Max-Wick lining moves sweat away from your foot to keep you dry. Contoured EVA footbed with gel cushioning for superior underfoot comfort and support. BioGrip outsole is slip resistant for excellent traction. Comfort temp rated: -72F/-60C. Imported. Measurements: Weight: 1 lb 12 oz Circumference: 16 in Shaft: 9 in Product measurements were taken using size 9, width D - Medium. Please note that measurements may vary by size. Weight of footwear is based on a single item, not a pair.