Louis Garneau Women's Tri X Speed II Triathlon Shoes. The Louis Garneau Women's Tri X Speed II Triathlon Shoes prove that a superbly crafted, technological marvel don't have to break the bank. Its reinforced nylon outsole delivers superior stiffness for pedaling performance while the patented ventilation system channels air from the front all the way through the back of the shoe to keep your feet cool such a blessing when you're on the bike in sweltering conditions. To ensure all your watts go directly into blasting your bike forward, the Tri X Speed II features a HRS 80 retention system to keep your heel firmly in place during the power stroke. A wide strap at the heel lets you easily pull the shoes on for a fast and efficient transition, and the Power Flex Velcro strap delivers a snug, precision fit without irksome pressure points. And to make transitions as quick as possible, the Velcro strap is reversed to facilitate closure while on the bike.