Stretchable nylon fabric positions a soft, silicone Gel pad that cushions and protects the forefoot area. Helps relieve ball-of-foot pain, metatarsalgia, calluses and fat pad atrophy. Designed for wear under or over socks. Thin profile fits comfortably in most footwear. Washable and reusable for months. Adjustable. Interchangeable — fits right or left foot. Small fits Narrow feet. Large fits Wide feet. 1 per pack.