A sturdy work boot, the Classic Ultra High wellington boots from Bogs are ideal for heavy duty applications and have a temperature comfort range of up to -40F/-40C. These wellies are manufactured from durable hand-lasted rubber upper and a four way stretch inner bootie for comfortable cushioning. The rugged rubber overlay extends calf-high to ensure full protection. The stretch-fit topline binding on this pair of boots comfortably snugs your calf for a secure fit that keeps warmth in and the cold out. The lining of these tall boots is made of breathable textile with 7 mm waterproof Neo-Tech Lite insulation to keep your feet dry and warm. The removable, contoured, foam insole is treated with DuraFresh bio-technology to fight unwanted odours. A lightweight layer of cushioning and warmth is also provided by the internal midsole with rubber sponge. Finishing these wellington boots is the durable, shock-resistant, non-slip and non-marking rubber sole with aggressive treading.