The Boulder Medium Weight is a medium-weight traditional hiking sock, ideal for colder temperatures. It features durable stretch yarns for better insulation and improved longevity. Full-density padding cushions the instep and entire leg shaft when wearing heavy boots, and 100% US-grown merino wool provides exceptional insulation.
| Size | Men's | Women's |
| S | N/A | 4-6.5 |
| M | 6-8.5 | 7-9.5 |
| L | 9-11 | 10-12.5 |
| XL |
12 |
N/A |
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