The North Face ThermoBall Traction Mule II – Kids' midlayer Contagrip MA all-terrain outsole

Contagrip MA all-terrain outsole

and Military Green across a wide size range

Hybrid gym-to-swim design cuts the need for a wardrobe change — one short handles the whole day

COOL WOOL MATERIAL: Using a special steaming process

One-size-fits-most design fits a wide range of head sizes comfortably

The North Face ThermoBall Traction Mule II – Kids' midlayer Contagrip MA all-terrain outsoleWhen kids need something they can grab and go campsite, backyard, or everywhere in between the ThermoBall Traction Mule II is our pick for young outdoor goers. ThermoBall Eco insulation stays warm even when wet, so damp mornings at the trailhead aren't a problem. A full rubber outsole handles slick floors and light trail alike. ThermoBall Eco synthetic insulation mimics down's warmth clusters keeps feet warm even in wet or damp conditions 100%