ABUS Fahrradhelm Scraper 3.0 ultra blue M 54-58cm  ABS hard-shell technology  High visibility thanks to bright reflectors  Ponytail compatibility: Helmet well suited for ponytail wearers Forced Air Cooling Technology: Well thought-out ventilation system for Optimal head climate  For this type of helmet good ventilation due to 4 air inlets and 4 Air outlets  Size adjustment via a half ring made of particularly