LOOGU Ultralight Adult Bicycle Helmet with Dial Fit Adjustable Design Quality Assurance (Through the CE.CU.CPSC EN and 1078 Certification) Lightweight Integrally-Molded EPS Bicycle Helmet. 41 Flow Vents to Keep Rider Cool and Moisture-Wicking Pads Keep Rider's Head Dry Free Size Fit for Many People,Because It is Easy-to-Adjust Webbing Ensures a Comfortable Fit and Dial Fit Adjustable System Adds Ease Standard Shipping 8-15 days to USA / Expedited Shipping takes 3-6 days Ship from China