Fitting Chart Small Ladies 5-8 Men"s 4-7 Medium Ladies 8-10 Men 7-9 Large Ladies 10-12 Men"s 9-11 Extra Large Men"s 11-14 * Foot & Ankle Compression starting Mid Foot for Plantar Fascia and Arch Support * Silver Drystat is our exclusive Anti Fungal, Anti Bacterial, Anti Viral this 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