Introducing the Spark Derby Laces: 72 inch (183 cm) skate lace with strong metallic fibers, high performance braid, and hardened plastic tips suitable for roller derby and other high performance skating. Derby Laces are braided from a blend of high quality, high tenacity fibers. They are exceptionally soft, have high tensile strength, and are resistant to abrasion and moisture.
SPARK by Derby Laces 7mm Metallic: Has spent several years developing this metallic lace. These laces are 7-8mm wide and are suitable for most all skates and shoes. They are made out of high quality polyester that has been braided for strength and durability. They have a metallic sheen to them that is truly remarkable. The metallic qualities of these laces cause them to create a slight friction in the lacing process giving them a lot of the positive features of the waxed laces. They stay tied and tight and where you want them, while being easier to unlace quickly. They are EXTREMELY LIGHT for anyone trying to shed all excess weight in the skates. They have a hardened plastic tape tip with the word SPARK on them. For optimal performance, we recommend changing the SPARK laces every 4-6 months, depending on use.