OS1st Pickleball Crew Socks provide four zones of light, graduated compression to support your feet and lower calves. These socks are crafted with nano-bamboo charcoal fiber to keep you cool and wick away moisture, plus right and left side designs for a proper fit. Silver-Ion technology helps fight odors and bacteria. Great for pickleball and other activities, these socks ensure healthier feet and better performance. SIZE CHART: OS1st Pickleball Crew Socks Technical SpecificationsHigh Impact and Blister ProtectionPadding in High-Friction Areas with Nano Bamboo Charcoal Ionized FibersCooling Heat Release TechnologyArch Band for Added SupportTreated with Silver-Ion Technology for Antibacterial Odor and Moisture-Wicking AbilityCare: Hand wash, hang dry. Do not bleachImported.