Keep your head and ears toasty when the temperature drops. With a wind resistant P.R.O. Barrier fabric front panel for added protection, thermal moisture-wicking sides, plus an ergonomically contoured cut, this cool weather headband fits comfortably under your helmet even allowing for a ponytailPRO Barrier fabric panel on forehead provide lightweight wind protection and water resistance,PRO Thermal Dry fabric provides optimal moisture transfer, dry time and odor absorption with warmth,Ergonomic cut layers easily under helmet,Low profile ponytail port allows for long hair and does not interfere with helmet retention mechanisms,Reflective elements for low light visibility,One size fits all,Weather forecast: Cool and windy,Temperature range: 0 to 5 degrees.