Description:Professional and exquisite workmanship makes it very shock-resistant and comfortable. The streamlined design and porous design allow it to reduce wind resistance and circulate heat dissipation.Impact resistance and drop resistance make it have a longer service life. The adjustable head circumference allows you to adjust it to suit your needs.It is made of EPS, PC, nylon and PP material, which is comfortable to wear.The length of this product is 29cm, the width is 21cm and the height is 13cm.It is suitable for cycling, rider, outdoor and so on.Item Name: Bicycle HelmetMaterial: EPS, PC, Nylon, PPFeatures: Streamlined Design, Shock Absorption, BreathableSize Details:Size: 29cm x 21cm x 13cm/11.42" x 8.27" x 5.12" (Approx.)Head Circumference: 56cm-62cm/22.05"-24.41" (Approx.)Notes:Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement.Package Includes:1 x Bicycle Helmet