20-30mmHg Graduated compression, Heat conducting fabric for Chronic Plantar fasciitis, Chronic Achilles Tendonitis, Chronic Ankle Pain. (sold as pair: two pcs come in each box)

Sizing  by Shoe size
Men Women
XS
S 4 to 6.5
M 6 to 9.5 7 to 10.5
L 10 to 13 11 Plus
XL 13.5 to 15
2XL 15.5 Plus
3XL For swollen feet
4XL For swollen feet