Sockwell Women's Chevron Compression Socks, Thistle, Medium/Large 32% Merino Wool, 32% Stretch Nylon, 31% Bamboo Rayon, 5% Spandex Imported Moderate (15-20mmHg) Graduated Compression - Recommended for: All day and every day wear; Prolonged sitting or standing; Flying and traveling; Exercise and recovery; Minimizes or eliminates swelling of the feet Promotes circulation, minimizes swelling, and helps reduce fatigue Accu-fit technology consisting of spandex throughout the sock ensures same fit at the end of the day as when it was first pulled on Ultra-light cushion sole provides comfort and great fit Offers arch support, turn welt top and seamless toe closure with reinforced Toe and Heel Box helps keep the sock in place throughout the day Moderate (15-20mmHg)-recommended for all day, everyday, Ideal for prolonged sitting, standing, flying and travel, minor swollen/tired feet and legs Seamless Toe Closure for Fit and Comfort Arch Support offers a Comfort Fit and Helps Keep the Sock In Place Spandex Throughout prevents slippage and ensures a snappy fit throughout the day