FootSmart Women's Sheer Firm Support Pantyhose 80% nylon Bubble toe for plenty of wiggle room, reinforced heel and toe for extra durability. Flat seams provide durability, comfort and a smooth appearance. Graduated Support Level: Firm 20-30mm / Hg. 80% nylon, 20% spandex. Note: Light to moderate support products are recommended for first-time wearers. Made in USA. Care: Hand wash in warm water with mild soap / detergent. Blot with towel to remove excess water, do not wring or twist. Lay flat to air dry.