The Gutr Flex Sweatband has received a few improvements from its original design as the Gutr Sweat Headband. With a new, low-profile, adjustable elastic closure, the Gutr Flex is incredibly comfortable while fitting smartly under helmets. FLEX channels the dripping sweat away from your eyes and glasses, so you can focus on crushing your PB. Gutr performance sweatbands are not fabric, so it will never soak, saturate, or quit. Lightweight and easy-to-clean, this is a low-maintenance, high-performing sweatband.Features: Durable, lightweight, and soft plastic is sweat resistant and easy to clean Elastic comfort closure with an adjustable slider stretches to fit nearly any head size Vented sides for added flexibility and comfort Gutr technology channels sweat away from your eyes and glasses Micro lip channel promotes sweat drainage and prevents foggy glasses Sleek design fits comfortably underneath a helmet