| Sock Size | US Men Shoe Size | Foot Length (in) | Recommended Use |
|---|---|---|---|
| S | 5‑7 | 9.0‑9.6 | Light hiking, everyday casual |
| M | 7‑9.5 | 9.6‑10.4 | Hiking, trail running, light work |
| L | 9.5‑12.5 | 10.4‑11.3 | Backpacking, heavy‑duty work, tactical, hunting |
| XL | 12.5‑15 | 11.3‑12.1 | Oversized feet, work boots, winter hiking |
| Sock Size | US Women Shoe Size | Foot Length (in) | Recommended Use |
|---|---|---|---|
| S | 5‑7 | 8.7‑9.3 | Road run, casual, light hiking |
| M | 7‑9.5 | 9.3‑10.1 | Backpacking, trail running |
| L | 9.5‑11.5 | 10.1‑10.8 | Ski / snowboard, winter hiking |
| Sock Size | US Kids Shoe Size | Foot Length (in) | Recommended Use |
|---|---|---|---|
| XS | 8‑11 (Toddler) | 6.2‑7.0 | Toddler casual & outdoor play |
| S | 11‑2 (Little Kid) | 7.0‑8.1 | Kid hiking, everyday wear |
| M | 2‑5 (Big Kid) | 8.1‑9.0 | Youth hiking, camping |
* All measurements are in inches. Measure bare foot from heel to longest toe.
* Sock fit works with low‑cut, crew, mid‑calf and over‑the‑cuff styles.
* If between shoe sizes, choose the larger sock size for better comfort with thick boots.
* Merino wool will stretch with wear; compression varies by cushion weight: light, mid, heavy cushion.
When you’ve got to run, count on reaching for this Micro Crew first. Durable, breathable, and barely there, you’ll likely forget you’re wearing anything at all. Plus, with colors that run as fast as your next PR, why wouldn’t you add all the colors to your race day kit? Now that's having the runs.
Machine wash in cold water on gentle cycle with socks inside-out. Do not bleach. Tumble dry on low or hang dry. Do not dry clean. You can learn more about how to wash merino wool socks here.