Men's puffy, slip-on shoes INSULATED UPPER: Insulated nylon upper keeps your feet warm INSULATED UPPER: PrimaLoft insulation material for superior warmth and water resistance SYNTHETIC OUTSOLE: A durable synthetic outsole provides traction MADE WITH RECYCLED CONTENT: Made in part with recycled content generated from production & post-consumer household waste to avoid the larger environmental impact. 25% of the components used to make the upper are made with a minimum of 50% recycled content. Color: black