Fit & Design: One size fits all Turn any pair of lace-up pickleball shoes into slip on sneakers ready to get on the court Added compression reduces discomfort so you can perform your best 6-strand elastic laces conform to your foot for a custom fit and to reduce heel slippage and increase blood flow below the ankle Each pair is suitable for lacing up one pair of shoes Laces 6-strand fibers are .22 cm in diameter, 48 inches in length and can stretch up to 72 inches