The PhD® Outdoor Light micro is made for the trail. Featuring Indestructawool™ technology for ultimate durability, we've designed these socks to outlast your greatest adventures. And with features like mesh zones for maximum breathability, a Virtually Seamless™ toe and the power of Merino, they'll help keep you comfortable every step of the way.
sock size
| shoe size | |||||
| Youth | Men's | Women's | UK | EC | |
| Youth YS (5-6) | 4 - 7 Toddler | ||||
| Youth YM (6-7) | 7 - 10 Toddler | 7 - 10 | 25 - 28 | ||
| Youth YL (7-9) | 10 - 2 | 3 - 5 | 10 - 3 | 28 - 31 | |
| Youth YX (8-9½) | 1 - 5 | 4 - 7 | 3 - 5½ | 32 - 38 | |
| Adult SM (7-9) | 10 - 2 | 3 - 5 | 10 - 3 | 28 - 31 | |
| Adult MS (8-9½) | 1 - 5 | 4 - 7 | 3 - 5½ | 32 - 38 | |
| Adult MD (9-11) | 5 - 9½ | 6 - 10 | 5 - 8 | 37 - 42 | |
| Adult LG (11-13) | 9 - 12 | 10 - 13 | 8 - 11½ | 43 - 47 | |
| Adult XL (13-15) | 12 - 15 | 12 - 14 | 47 - 50 | ||
| Adult 2L (15-17) | 15 - 17 | 15+ | 51+ | ||