Smartwool Thermal Merino Balaclava – Kids' Size:1FM Best for trail running

Best for trail running

Odor-resistant treatment slows bacterial growth so the shirt stays wearable through back-to-back training days

Women's-specific construction with a narrower heel and mesh ventilation zones for a dialed

Adjustable snapback closure

Redesigned cage construction wraps the midfoot for secure lockdown — no sliding

Smartwool Thermal Merino Balaclava – Kids' Size:1FM Best for trail runningFor cold weather trail time, skiing, or sledding, this balaclava is our top pick for keeping young athletes warm without the itch fight. Merino wool regulates temperature naturally and wicks moisture, so kids stay comfortable whether they're grinding uphill or waiting at the trailhead. Low profile fit layers clean under a helmet no bulk, no complaints. Full balaclava coverage wraps face, neck, and head in a single lightweight layer no gaps for wind to