Mountain Bike Road Bike Safety Bike Riding Ultra Light Breathable Can Effectively Reduce Wind Resistance

Features body is made with EPS & impact resistant composite material for more safetyUltra-light body for comfortable wearingWind tunnel and air duct design to effectively reduce wind direction resistanceHigh-quality foam layer internal with adjustable twist to fit your headOne size fits most. It will fit head circumference up to 25.59" / 65cm and head width up to 7" / 18cmWith those venting holes, your head will feel super cool when you ware it.SpecificationsColor: Green/Black, Pink/Black, Yellow/Black, White/Black, Red/Black, or Blue/Bla(piyour color)Material: EPS & impact resistant composite materialSize: One size fits most. Head circumference up to 25.59"/65cm and head wide up to 7"/18cmIt included1* Bicycle (piyour color)