THE NORTH FACE THERMOBALL TRACTION BOOTIE "W THERMOBALL TRACTION BOOTIE" These booties use THERMOBALL, jointly developed by The North Face and PrimaLoft. This ball-shaped synthetic insulation mimics the loft of down, and is known for its durability. It prevents heat from escaping and provides excellent insulation, comfortably controlling warmth. They slip on and off easily without fasteners. These are a great pair for everyday wear, not just for outdoor activities. Size: 26cm Brand new, unused. Accessories not included. Materials: Upper: Ripstop nylon Sole: Recycled rubber THE NORTH FACE THERMOBALL TRACTION BOOTIE W THERMOBALL TRACTION BOOTIE Short Boots Insulated Winter Shoes Lightweight Insulation Shoes Boots Outdoor Gift Color: TNF BLACK/TNF WHITE Black x White nf-w-nf0a331h