SPECIFICATIONSAge: (Adults) MenBrand Name: PJTChoice: yesHigh-concerned chemical: noneMaterial: EPSOrigin: Mainland ChinaType: Integrally-molded HelmetPJT Cycling Helmet Man Women Road Mountain Bike Helmet Outdoor Bicycle Skateboard Scooter In-Molded Ultralight Bicycle HelmetDescription:Brand: PJTMaterial: EPS foam PC shellApplicable head circumference (CM): 56-61cmHelmet inner size (CM): 20.5x17.5cmWhether one type: one typeHelmet stomata number: 16Product size (CM): 26*22*14.5Product weight (G): about 210Kindly note:1. This helmet is average size, 56-61cm, if your head bigger then 61cm, Do NOT advise to buy this helmet .2.If you want Bag,please order the helmet and bag combo,But not only order helmet.