Triathlon specific cycling shoes should be ventilated, lightweight and have a stiff sole for maximum power output. They are made with inners that allow you to go sockless, if you choose, and have heel pull tabs and quick fastening systems for speed of entry during transition. Many triathlon cycling shoes are made with reverse straps that open away from the drive train so that you can pre-attach your shoes to your bike and actually put your feet in and adjust them as you exit transition. Every second counts during transition and these shoes know it.