As Louis Garneau's lightest shoe to date, the Course Air Lite Road Shoe offers the creme de la creme of lightweight, race performance that is designed to put you atop the podium. The Course Air Lite features the new HM X Lite carbon outsole with titanium inserts, which provides an ultra stiff platform with an insanely low weight. The outsole also has Garneau's HRS 400 technology, which utilizes nylon injected reinforcement to secure the heel and eliminate slippage, resulting in an optimal fit with the most efficient pedal stroke. For added performance, the HM X Lite has a thin 4. 3mm stack height for improved power transfer. The Course Air Lite features a durable microfiber upper with 2LS mesh ventilation windows to keep you cool and comfortable. And you're guaranteed the most precise and customizable fit with the new Boa IP1 closure system, which eliminates pressure points and allows you to make on the fly adjustments with ease.