Bolt Micro Crew Ultra-Lightweight Running Socks Men's

The Darn Tough Bolt Micro Crew is made for speed—road miles, trail climbs, and every PR you feel ready to take a swing at. The retro van-stripe design nods to old-school adventure, but the performance is fully modern: ultra-light Merino Wool, a smoother upper for zero irritation, and targeted arch support that keeps your stride locked in.

Underfoot, the low-profile cushion absorbs impact without slowing you down. The micro crew height sits just above most runners and trail shoes, giving you the sweet spot of protection without extra heat. Fast, breathable, and built to go hard, the Bolt proves you don’t have to choose between style and performance.

Key Features

• Ultra-lightweight Merino Wool for max breathability
• Micro crew height for protection above running shoes
• Smooth, redesigned upper reduces friction and irritation
• Underfoot cushioning for impact control
• Built-in arch support for a locked-in feel
• Moisture-managing, naturally odour-resistant Merino
• Lifetime guarantee