*We recommend prioritizing calf size over shoe size for best possible fit.
Use a tape measure around the widest point of your calf and choose accordingly.
(Size charts are different for HERO and CORE collections.)
- CORE Compression Socks
Sock Size
Male (US Shoe)
Female (US Shoe)
Calf Size
XS
4-7
4-7.5
5in-9in
S/M
4.5-7.5
4.5-8
8in-12in
L/XL
6-8
6-10
11in-15in
XXL
8-11
10-13
13in-17in
3XL
7-11
7-13
17in-20in
4XL
8-12
8-14
21in-24in
5XL
9-13
8-15
23in-26in
- HERO Compression Socks
Sock Size
Male (US Shoe)
Female (US Shoe)
Calf Size
S/M
4-8
4-8
8in-14in
L/XL
6-10
6-10
14in-18in
XXL
8-11
10-13
18in-22in
3XL
9-12
8-13
20in-24in