Bloch Women's Contour Rubber Front Dance Flats Rubber Slip-On Style - No laces or ties get in the way with this shoe. It's pure performance, with a slip-on design that cradles the foot snuggly. Graduated Lines - Up and down the sides of these shoes are graduated lines, which are built into the shoe in order to help it bend and recover, thus working with the foot instead of against it. Inner Adhering Fabric - The innovative fabric Bloch uses for the inside of this shoe helps it grip to the foot, akin to suction, so it stays in place well when performing. Dynamic Resistance Technology - This is used in the heel cup, which is reinforced with this technology to help you absorb every shock associated with dancing. Rubber Construction - The rubber used in the construction of these shoes is very durable while also being very flexible, giving you a fuller range of motion and more protection.