It's always a good idea to have an extra set of boot laces on hand. The Kenetrek Pac high quality replacement laces are made of Cordura nylon. They have the perfect combination of soft flexibilty and incredible durability. They have fused tips that will not separate. If the lace is to long it can be cut and melted at the end. Select 63" laces for the 10" pac boots and 90" laces for the taller 13" pac boots.