Rubber compounds provide grip, traction and durability on both dry and wet surfaces. 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. Available sizes: 3,4,5,6. The North Face Mules / Casual Shoes Thermoball Traction Mule V Available in women's sizes. by The North Face . Stand out from the crowd with this white model designed by The North Face. You'll have a spring in your step!