This deep-winter biking hat features a fleece top and an insulated ear-and-neck band to retain body heat. The ripstop outer fabric blocks wind and moisture, while the soft, foldable brim shields eyes from the sun. - Helmet-friendly design - 300 g low-profile fleece top - 80 g Primaloft insulation in the ear-and-neck band - Polyester ripstop outer fabric - Soft, foldable brim for packability