Vitalsox Tri Vital Silver Drystat Graduated Compression Circulation Calf Sleeves VT2011T Fitting Chart XS Ladies 3-6 Small Ladies 6.5-8.5 Men's 5-7.5 Medium Ladies 9-11 Men's 8-10 Large Women's 11.5+ Men's 10.5-14 Compression Sleeve stimulated better blood flow to increase performance and recovery Silver Drystat is our exclusive performance fiber, stops growth of bacteria and fungus Quick Drying and Wicking Fiber prevents blisters and reduces odor Made in Italy using the latest technology and fibers, never outsourced to the lowest bidder Designed for tennis and lower leg wellness, popular for Walking, Running, Maternity, Yoga, Travel, Standing or Sitting and Sleeping