If you've ever raced a triathlon wearing traditional cycling shoes, you know that trying to adjust multiple straps while balancing on your bike isn't always easy. Sidi's T3. 6 Shoes make your transitions faster, while also giving you the on the bike power transfer you crave. Rather than using its ratcheting Ergo buckle system, Sidi opted for a simple two strap, hook and loop system to secure the Lucido synthetic leather uppers. The system is a burrito wrap, meaning that one layer wraps into the other, creating a near seamless inside. This style, combined with the wide straps, hugs your feet to give you that second skin feel, which is optimal for triathletes who prefer going sockless on the bike. A rear heel pull tab helps to pull your shoes on fast so you don't lose valuable seconds in transition. The uppers are placed on Sidi's Eleven Carbon Composite Sole, which is a stiff and light 3K carbon fiber weave that is inset into a carbon nylon matrix.