The Smartwool Headliner is the ultimate high performance base layer for your head. Unlike synthetics, Smartwool fibers capture perspiration in the vapor state so you stay warmer, dryer and cooler.

A single layer of Smartwool provides maximum warmth with minimum weight and bulk. The Headliner fits great under bike and climbing helmets keeping your head and ears toasty warm.

Contoured 3 panel construction fits close to the head, while flat seams reduce bulk and pressure points.

Constructed of New Zealand merino wool that is buttery soft and itchless. The natural weave eliminates the smells typical of synthetics by not providing bacteria a place to grow.

Machine washable and dryable without shrinking. Made in the USA.

Ideal headliner for adventure racing, mountain biking, ice and mountain climbing, etc.