Arch support socks provide gentle compression lifts to support the arch and relieve arch-related pain and discomfort Coolmax® moisture wicking fabrication keeps feet cool and dry during activities Medium Density: Allows for proper fit and comfort. Reinforced Heel & Toe: Added strength against abrasion. Comfort Toe Seam: Invisible feel for greater comfort. "Y" Heel: Deep pocket to provide stability. Content: 36% Coolmax® Polyester, 30% Nylon, 28% Sensura® Polyester, 4% Polyester, 2% Lycra® Spandex |