Giro: The Caden™ II offers a sophisticated style with advanced head protection technology, making it aperfect match for your on-the-go lifestyle. A sleek In-Mold™ shell helps keep Caden lightweightThoughtful details include reflective accents, a lock port for securing the helmet with your bike or a bag when you’re onthe move, and a TPU cycling cap-style visor that accents your style without compromising ventilation. SPECSIntegrated Mips® brain protection systemUniversal front light attachment pointFeatherweight webbing Slimline™ buckleCONSTRUCTIONFull-wrap In-Mold polycarbonate shell with EPS linerVENTILATION12 Wind Tunnel™ vents with internal channelingSUPER FIT™ SIZESS 20”–21.75” / 51–55cmM 21.75”–23.25” / 55–59cmL 23.25”–24.75” / 59–63cmCERTIFICATIONComplies with the US CPSC Safety Standard for Bicycle Helmet for Persons Age 5 and Older.