Brooks Trouser Strap FASTENS TROUSERS TO LEG- Prevents your trousers from being caught in your chain. KEEP TROUSERS CLEAN- The trouser strap keeps unwanted grease and lubricant from staining your trouser legs. VEGETABLE TANNED LEATHER- Brooks England uses only the finest 3.5mm vegetable tanned leather for their bags, straps and accessories. RANGE OF COLORS- Comes in 3 different colors, designed to match your Brooks Saddles, Grips and Bags.