Built for elevation gain, fast miles, and days that demand more from your gear.
The Darn Tough Men’s Fastpack Micro Crew Lightweight Sock is designed for movement—engineered for hikes where pace matters and conditions change quickly. Lightweight cushioning underfoot delivers comfort without bulk, while targeted arch support helps reduce fatigue on long climbs and steep descents.
Breathable construction across the top of the foot keeps airflow moving, and extended cushioning through the Achilles adds protection where it’s needed most. A secure, stay-put fit ensures the sock holds its position mile after mile, eliminating friction and distractions as terrain and elevation shift.
Finished with a restrained striped design, the Fastpack balances technical performance with a refined look that fits naturally into a capable, well-considered kit. Knit in Vermont and backed by Darn Tough’s unconditional lifetime guarantee, it’s built to go the distance—again and again.
