Full Body footUndeez™ with Heel and Arch Support Our Full Body footUndeez™ foot thongs provide a barely-there look with added heel protection and arch support. Includes two separate sole patches which form to the individual pads of your foot. Double stitching secures the pads while plush elastic moves with the foot and keeps the shoe in place. Recommended for the dancer who goes a little too hard on her heels. Product Features: 4 way stretch, breathable Nylon Lycra® Spandex powernet upper First split sole open toe shoe on the market Patented ExoArmor duet sole patches move independently Both forefoot and heel pads are securely sewn with stitching both on the edge and interior 5/8" one-sided plush elastic with Capezio logo in a figure 8 holds footUndeez in place Size Chart: Small (UK 4-5 / EU 37-38) Medium (UK 6-7 / EU 39-40.5) Large (UK 8-9 / EU 42-43) X-Large (UK 10-11 / EU 44-45) Half sizes or extreme feet go up to next size.