Most socks from the American Injinji are unisex. In addition, there are a number of specific women's models and a single specific men's model. For convenience, we use the shoe size for the products themselves, so you don't actually have to look at the size.
If you are in doubt about the size, take the smaller one. If they are too roomy you will have a piece of fabric left at the toes and that is less comfortable. You can also measure your feet and look at the number of centimeters.
Size Chart Injinji Unisex Socks
| Size | Shoe size | Length |
| S | 37-40 | 23-25 cm |
| M | 40.5-44 | 25.5-27cm |
| L | 44.5-47 | 27.5-29cm |
| XL | 47.5 | 29.5+ cm |
Size Chart Injinji Women's Socks
| Size | Shoe size | Length |
| XS/SM | 35-40 | 21.5-25cm |
| MD/L | 40.5-44.5+ | 25.5-27.5+ cm |
Size Chart Injinji Men Socks
| Size | Shoe size | Length |
| SM/M | 37-44 | 23-27 cm |
| L/XL | 44-47.5+ | 27.5-29.5+ cm |
