Lightweight warmth meets cold-weather coverage with the Brooks Momentum Thermal Headband! Designed for chilly miles, this thermal headband features snug yet stretchy fabric for a secure fit. An antimicrobial finish helps it stay fresh after you break a sweat. Light, warm and breathable, the Brooks Momentum Thermal Headband is for cold-weather champions! Lightweight warmth: Thermal material traps heat while providing breathability for an exceptional weight-to-warmth ratio. Secure fit: Snug yet stretchy fabric keeps your headband in place without any slipping or sliding. Odor resistant: Antimicrobial treatment eliminates bad smells by preventing odor-causing bacteria from growing in the fabric. Fitted Double-layered