BoomLaces "Laces With Power" Compression Stretch Elastic Athletic Travel No Tie Shoelaces With Lock. For Kids, Women, Men. Shoe Laces Lock For Comfort, Security, Safety. No tie shoelaces provide comfort and support. Improve performance with foot compression. Lace locks give a secure custom fit, allowing elastic laces to eliminate pressure points. Tighten or loosen the laces lock to create the custom fit for your foot compression preference. Convenience. Putting on shoes couldn't be easier or faster. Slip on/Slip off, quick,fast & easy. For all lace up shoes with shoe strings, sneakers, work boots, etc. Fits most shoe styles and sizes.