The Baffin® Borealis boot offers stellar protection that will keep the rain and cold at bay so you stay comfortable all season long. Abrasion-resistant man-made shell upper.Complete waterproof protection. Interior features a removable, cushioned body-heat foldable Ultralite System lining for incredible warmth and comfort. Over-ankle boot design for added protection. Padded collar and tongue. Traditional front-lace fastening for a secure fit. Removable, cushioned insole provides excellent underfoot comfort. Dual-density midsole with AirGrip® technology for excellent stability and long-lasting durability.Polar® rubber outsole provides excellent traction on wet, snowy surfaces. Temperature rating: 5ºC/41ºF to -30ºC/-22ºF.