The Kali Protectives Aazis Plus 180 Soft KneeShin Guard uses perforated neoprene with a soft shell knee cup and shin plate, lined with Nitrex high density foam, to protect without restricting pedaling. The plates are constructed from flexible ABS plastic, so they're impact tough, yet able to give for excellent mobility. In abrasive zones, an Aramid weave expands protection and ensures durability. The Aazis Plus also features an anti pull down design that works to prevent migration when pedaling, effectively keeping the guard in place. It is fully washable, and antimicrobial materials help keep odors at bay. The Kali Protectives Aazis Plus 180 Soft KneeShin Guard comes in sizes Small through X Large and in the color Black.