Lace Poet Knee-High Yoga/Sleep Compression Toeless Socks (Mystic Blue, Medium) Material: Lycra and Nylon Compression Level: 20-30 mmHg AUTHENTIC SOLD DIRECT ONLY through Lace Poet Amazon Storefront. We have NO RESELLER on Amazon or anywhere. "Lace Poet" is a registered trademark of Lace Poet Inc.