Darn Tough Pennant RFL Over-The-Calf Ultra-Lightweight Socks Size:Medium on its own for warm

on its own for warm spring tours

Blade and handle collapse into each other for compact storage and rapid deployment

The “Made in Italy” Vuelta fabric has been chosen to provide comfort

46 tooth maximum rear cog for 1x11

an adjustable hem to retain loft

Darn Tough Pennant RFL Over-The-Calf Ultra-Lightweight Socks Size:Medium on its own for warmDarn Tough's Pennant RFL Over the Calf Ultra Lightweight sock provides the most secure and dialed connection between your feet and touring boots for unparalleled comfort on the skin track. The Merino wool construction naturally regulates your foot's temperature and stays warm when wet so you can venture into the backcountry with confidence. The Ultra thin, performance fit also offers next to skin comfort for long days on the skin track.