The Bontrager Starvos WaveCel Road Helmet is a major advancement in the protection against cycling-related head injuries. Bontrager Starvos WaveCel is a versatile, high-value cycling helmet for new to seasoned riders who want WaveCel, a leading technology in the protection against cycling-related head injuries. WaveCel is a collapsible cellular structure that lines the inside of the helmet. This Bontrager-exclusive technology disrupts the safety standards that the industry has accepted for over 30 years.Bontrager Starvos WaveCel Road Helmet FeaturesWaveCel advanced helmet technologyVirginia Tech 5-STAR ratingIntuitive, one-handed Headmaster fit system makes height and circumference adjustments easyLockDown dividers make helmet strap management clean and easy to adjustSoft, comfortable and moisture-wicking washable helmet padsAvailable in XL sizingThe Crash Replacement Guarantee provides a free helmet replacement if involved in a crash within the first year of ownershipSize (head circumference)Small (51-57 cm)Medium (54-60 cm)Large (58-63 cm)X-Large (60-66 cm)Fit systemHeadmaster IIHeadmaster IIHeadmaster IIHeadmaster IIPad materialMoisture wicking padsMoisture wicking padsMoisture wicking padsMoisture wicking padsBuckle typeStandard buckleStandard buckleStandard buckleStandard buckleIncludesCrash Replacement GuaranteeCrash Replacement GuaranteeCrash Replacement GuaranteeCrash Replacement GuaranteeWeight300g335g370g385g