Louis Garneau's Course Helmet bridges aerodynamics and ventilation for superior performance. Durable, light, and supremely comfortable, this sleek helmet speeds air across your head with large frontal vents, and exhausts air out the back — increasing air circulation while minimizing drag. Equally impressive, reinforcements in the helmet's structure make huge vents possible while the helmet remains incredibly strong. You'll also love the durable and attractive in-mold top and easy-to-adjust cam-lock straps. Plus, Garneau's Spiderlock Pro II retention system lets you find the perfect fit with its anti-slip adjustment wheel, their antibacterial X-static XT2 padding transfers moisture, and their included Spiderlock Vision taillight enhances your visibility after dark. This fine helmet is even tested in the wind tunnel for superior aerodynamics and free speed!