Description:Due to the semi-closed plastic ring design, it has strong stability, so it is not easy to fall. Through the design of 4 air inlets and 14 air outlets, air convection can be realized to prevent sultry heat.Adopting the EPS foam, our product can prevent cracking effectively because it has high elasticity inside. And it is wearable to use due to the one-piece molding. Using our product can protect your head because the joint between the inner layer of the helmet and the outer shell is covered by PC.It is made from EPS and PC, is wearable to use.There is one size of the product to choose from.The helmets is suitable for outdoor ridingItem Name: HelmetMaterial: PC,EPSFeatures: Anti-crack, Breathable, Shock Absorb Applicable People: Unisex Color: Purplish Red, White, Dark Blue, Dark Gray, Sky Blue, Yellow, BlackSize Details: [Our Size M] Head Circumference: 54cm-60cm/21.26"-23.62" (Approx.) [Our Size M]: 25cm x 19cm x 15cm/9.84" x 7.48" x 5.91" (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 Helmet