Louis Garneau Course 2LS Carbon Road Shoes. The Louis Garneau Course 2LS carbon road shoes are the epitome of well designed, high performance footwear. Beginning with the sole, its Exo Jet Carbon Outsole is constructed of hot melt carbon which means that the carbon fibers used have been further processed making them not only lighter, but thinner. This creates a shoe that is lighter, stronger, and closer to the pedal for optimum efficiency. Additionally, Course 2LS Shoe has a patented multi vent system that intakes air via vents in the sole, channels airflow through the sole of the shoe via two internal channels, and evacuates the air through another vent in the sole for the ultimate in comfort. The shoe's Boa Closure System dials in a more precise fit by evenly distributing pressure and reducing pressure points. The Boa reel system offers infinite degrees of fine tuning and with dual reels on the Course 2LS shoe varying amounts of security and tension can be provided by individual dials to the cuneiform bones and metatarsal bones. Increased power transfer is achieved not only through the carbon fiber outsole but the HRS 300 heel system. This system features a heel injected with nylon. Since injected nylon is an amazingly resistant material that has an extremely low coefficient of friction, it perfectly secures the heel in place, optimizes fit, and reduces loss of power from slippage.