Whether you're relaxing by the fireside or exploring your surroundings, freezing conditions are no match for the ThermoBall™ V Traction Winter Mules. These mules feature an upper made from Recycled P.E.T. Ripstop with a Non-PFC Durable Water-Repellent (Non-PFC DWR) Finish, and a sole unit made with up to 20% Recycled Rubber. The approximate weight is ½ Pair: 231 g / Pair: 462 g. Available in sizes Medium: 7-14 (Whole Sizes). The upper is crafted from recycled P.E.T. ripstop with a non-PFC durable water-repellent (non-PFC DWR) finish to help keep feet dry. Lightweight ThermoBall™ Eco insulation retains warmth, even when wet, and the Oso fleece collar lining provides comfort. A collapsible heel with elastic side panels allows for easy on/off. The sole unit features an outsole made with up to 20% recycled rubber. Thermoball™ eco, made from post-consumer recycled polyester, effectively insulates in cool, damp conditions. This product is made from recycled materials, which helps reduce landfill waste and minimize its impact on nature. Synthetic padding retains heat even in humid conditions. Rubber compounds provide grip, traction and durability on both dry and wet surfaces.