Nylon Brites Collars Make a Bold Fashion Statement Our Guardian Gear Nylon Brites Collars in high-quality neon-bright nylon are standouts in both style and durability. Bar-tacked stitching at stress points provides extra strength. Adjustable Nylon Brites Collars come in four widths and feature plastic contoured quick-release buckles and nickled-plated D-rings. Come packaged for easy peg display. Nylon Adjustable Collars are available in the colors and sizes listed below. .Coordinating Couplers (see item TP804) Leads (see item TP809) and Harnesses (see item TP807) are also available and sold separately.