Used once! Mirage MIPS Snow Helmet - Women's Lightweight in-mold helmet incorporates Aerocore™ construction and Koroyd® material for breathability and maximized impact protection Rotational motion can cause brain injuries; with MIPS, a low-friction layer slides 10 to 15mm in all directions, reducing rotational motion to the brain during impact Dial fit system and cozy fleece liner help keep your dome comfortable and warm All communication is on here, do not comment asking me to text you. Thanks