When kneeling, the 0.8 inch (2 cm) thick padding cushions the impact and reduces the burden during prolonged use as a knee protector. Made of durable material that prevents digging in, and is easy to fit on the body, and has a non-slip backing to prevent slippage during movements such as getting up and getting started. Set of both legs on both left and right legs: Plain material used for wet activities such as wetsuits, excellent strength and resistance to sweat and stains: The knee pad is plain material, so it can be used in wet situations such as skateboarding, biking, cycling, winter sports, marine sports, fishing, survival games, etc.