Favoto Mountain Bike Helmet Adult- Dual Shell Lightweight Mtb Bicycle Helmet Product Details Dual Shell Protection: CE (European Standard) and CPSC (US National Standard) approved. The PC dual-shell integrated molding design enhances durability and provides superior impact protection. The high-density 20mm EPS foam effectively absorbs and disperses impact forces, ensuring reliable protection. Comfortable and Lightweight Design: Featuring a rear elastic cord for easy hanging and quick removal of sports glasses. The high-quality moisture-wicking liner is lightweight, breathable, and can be easily removed and cleaned, ensuring a clean and cool riding experience. The bike helmet weighs only 335g/0.74 pounds, reducing neck pressure even during extended wear. Sun Visor for Protection: Reinforced large sun visor is carefully designed to provide eye and impact protection, preventing mud, branches, or other debris from directly hitting the rider's eyes and forehead during cycling. The high-quality metal buckle ensures secure fastening without the need for tools. Adjustable and Secure Fit: Size M 54-58cm/21.2-22.8inch (allow about 1cm difference, measure your head before purchasing). One-handed adjustable dial knob and internal padding ensure a perfect fit. Versatile Cycling Helmet: Specifically designed for various road and mountain biking activities, especially endurance and off-road riding. With the removable visor, it is suitable for commuting bikes in urban and suburban areas. Payment We accept PayPal and credit cards via PayPal. Taxes - US We collect sales tax, as required by law. Shipping We make every effort of shipping within 3 business day of payment clearing. The estimated delivery time is 2 - 5 business days from the shipping date. Policies If you do need to return your item, please contact us via email (you will receive an email when your product ships with additional details - Subject: Important information about your purchase). You will then be provided with a return shipping label and packing slip. Pack the item carefully. Include the packing slip, apply the shipping label, and return the item within 30 business days of the date you request a return, or your return will be canceled. Once we receive your order we will inspect the return. Please allow up to 5 business days of receiving the returned item for your refund.