Protective motorcycle jeans and trousers tend to incorporate abrasion-resistant materials either by way of a liner, or by using a particularly hardwearing main fabric. Most frequently, lined jeans will use DuPont Kevlar fabric, though some brands use proprietary alternatives, for example, Resurgence Gear's PEKEV. Singe-layer jeans come in a broad range of prices. Richa's Original series which use Cordura Denim for a simple and wallet-friendly way of making a protective jean that feels exactly like a standard pair. At the higher end of the spectrum, some jeans incorporate Dyneema fibres into the weave of the denim itself, creating an incredibly tough pair of trousers that looks identical to something you might find on the high street.