The iconic bootie was designed in collaboration with American Ballet Theater Principal Dancers Irina Dvorovenko and Maxim Beloserkovsky. Worn by dancers worldwide, Warm Up Booties keep feet warm without the need to remove one's ballet shoes. Incasing feet in a softly padded, durable rip-stop nylon, the booties not only protect the foot but offer longevity to ballet shoes. A velcro strap secures the booties whilst the padded outsole is covered in a non-slip PVC.