ClipClap ROAD and EXPLORE work with any shoe. Of course, there are shoes that are generally more comfortable for cycling than others. Therefore, we recommend the following: Using ClipClap with open shoes or sandals can be dangerous and/or uncomfortable. Riding a bike with open shoes is not recommended! Using ClipClap with barefoot shoes can cause pressure points due to the flexible sole and the usually thin upper material. This also applies to other shoes with thin or flexible soles. The following applies to every type of shoe: The strap must be tightened and the base plate must sit under the sole of the shoe. Otherwise, a smooth release from the pedal cannot be guaranteed.