Vitalsox OTC Heavy Weight Socks VT0811 Silver Spandex Lycra Imported Graduated compression technology provides the maximum benefit and circulation boost of up to 40% increase and shorter recovery time and less swelling Designed and manufactured using the latest technology at our factory in Italy - never outsourced! Sock experts since 1998 - your feet will thank you Gently increase your arch and plantar fasciitis support as part of good, long-term foot care. Greater circulation for injury prevention and recovery Elasticized arch band ensures support and fits like a second skin to minimize friction while stimulating blood circulation in your foot Silver Drystat, our exclusive fiber, reduces the growth of bacteria and fungus to promote a healthier, dry feet. Dry feet = Less blisters