| Sock Size | Women's US/CA shoe size | EU shoe size | UK shoe size | Calf circumference (at widest) |
| S | 4-6.5 | 34-37 | 2-4.5 | 11"-14.5" (18-26.5 cm) |
| M | 7-9.5 | 38-41 | 5-7.5 | 12.5"-16.5" (32-41 cm) |
| L | 10-12.5 | 42-45 | 8-10.5 | 14.5"-18" (37-45.5 cm) |
| XL | N/A | 46-49 | 11-13.5 | 16"-23" (41-58 cm) |
| Sock Size | Women's US/CA shoe size | EU shoe size | UK shoe size | Calf circumference (at widest) |
| S | 4-6.5 | 34-37 | 2-4.5 | 11"-14.5" (18-26.5 cm) |
| M | 7-9.5 | 38-41 | 5-7.5 | 12.5"-16.5" (32-41 cm) |
| L | 10-12.5 | 42-45 | 8-10.5 | 14.5"-18" (37-45.5 cm) |
| XL | N/A | 46-49 | 11-13.5 | 16"-23" (41-58 cm) |
The Smartwool Performance Running Sock offers a more fitted, women-specific fit with a narrower heel. It features Indestructawool technology for added durability. Its 4 Degree Elite Fit design provides an optimal, performance-oriented fit. Shred Shield technology reduces toe wear. Mesh zones provide enhanced breathability. The Virtually Seamless toe offers great comfort.
Heel tab prevents the micro sock from slipping into the shoe.
Fabric:49% merino wool, 47% nylon and 4% elastane.
