That depends on which side of our SPD compatible pedal you choose. If you choose to use the toe cage side, wear athletic shoes. We recommend as hard of a sole as possible. Never ride in open toed shoes, slippers, flip flops, or barefoot. If you choose to use our clip-in option on the reverse side of pedal, use SPD cleats on the bottom of your SPD compatible cycling shoe. We offer SPD cleats on our site as well.