For increased durability, the pants use a robust 850D polyester construction on the main body, while heat and abrasion-resistant leather knee panels offer further reinforcement against knee braces, guards, and the bike. Airflow and storage are further enhanced with two zipper vents and cargo pockets to hold all your essentials. Rider Attack Position (RAP™) construction for an improved ergonomic fit on the bike Heat and abrasion resistant leather knee panels increase durability against knee braces, guards, and the bike TruMotion® zonal 4-way stretch panels provide unmatched mobility 850D polyester main body with screen printed logo treatments for a durable, long-lasting aesthetic Over the boot lower leg keeps debris out of the boot Cargo pockets to hold essentials Zipper thigh vents for increased ventilation Shell: 62% polyester, 24% polyamide nylon, 7% cotton, 5% cow leather, 2% elastane Lining: 100% polyester