Purchased in January 2024, used 5 times. Size S, suitable for women or small men. BC model, designed for lightweight performance. The compact shell makes it easy to attach to the outside of a backpack. Features openable/closable ventilation, allowing you to open it for breathability during hikes or lift rides, and close it for warmth during runs. *The wire on the left side of the BOA helmet tightening system has come loose from the base. You can still use it by wearing the helmet while winding the wire, which will secure it. It can be repaired by OAKLEY, but I haven't bothered and have been using it as is. Matte black OAKLEY helmet, designed with ventilation holes for comfort. - Brand: OAKLEY - Color: Matte Black - Model Name: Helmet - Ventilation Hole Design: Multi-hole - Strap Type: Adjustable Thank you for viewing.