The Gaiam Odyssey running hat is the ideal exercise and fitness hat for women and men. With a focus on function and fashion, Featuring a breathable fabric, moisture absorbent sweatband, and an adjustable Comfort fit strap with reflective tape and easy-grip pull tab. The perfect fitness accessory to help you stay cool in the heat - summer time yoga can quickly turn into hot yoga and the Gaiam Odyssey hat is here to keep the sun out of your face No matter the activity. A traditional running hat with a lightweight and breathable wicking fabric to provide protection in the outdoors while exercising, but without the bulk of a baseball hat - Also great as a golf hat, tennis hat or ball cap in the sun. The headband of the hat is actually a sweatband that helps to keep sweat and moisture off your face and out of the eyes. Hats feature an adjustable secure-fit strap with reflective tape and clear pull tab providing a comfortable fit with room for pony tails. One size fits most.