Combine the warmth and comfort of a sleeping bag bootie that's perfect for traveling; Light and packable, the Cush' can be rolled into a small space when not in use and may be worn inside the sleeping bag in extremely cold conditions; Soft, supple nylon upper with cozy high-loft insulation to keep your feet warm; Elasticized, lockable front tie closure; Micro-suede outsole with a slip-resistant polar proven pattern, suitable for wear inside a tent when cold weather camping;