EPS Foam Cycling Stable Helmet of Unibody Design with 22 Holes 1.Tight binding/No gap, Play a better security role of the head. 2.Silk-light grade color EPS foam structure, effectively reduce the shock pressurstreamlined tail design. 3.With removable, protective pad liner and sweat chin pad, comfortable to wear and easy to wash. 4.The adjustable and removable visor help to avoid foreign bodies and provide a shade for our eyes. 5.The adjustment can make the helmet be suitable for you, head girth: 52-61cm, head width is 18cm.