Darn Tough Pennant RFL Over-The-Calf Ultra-Lightweight Socks Size:Medium Blade and handle collapse into

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

Each set includes a pair of heated insoles and one pair of C-pack batteries

an adjustable hem to retain loft

Water repellent fabric

**PLEASE NOTE: This product can not be shipped and must be picked up in-store

Darn Tough Pennant RFL Over-The-Calf Ultra-Lightweight Socks Size:Medium Blade and handle collapse intoDarn 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.