Doing it for the Groms! Once again Troy Lee Designs has one of their best youth collections to date. With everything from "wild to mild," groms across the globe will have plenty of options to get geared up in whether it be for racing or just hitting the trails. TLD Dura Knit. TLD Air Knit. Wicking and quick-dry finishes. Silicone signature logo on tail for added grip. Fabric is certified Blue Sign® approved.