The lower features a TPU heel counter

while the breathable lining aids driver comfort

plus dual thermoplastic patella shells and a slip-joint chassis for abrasion resistance

Its tapered profile is engineered to work with gravity

and utilize the most advanced materials technologies available at Alpinestars

explore ast pants short Color:Black The lower features a TPUEngineered for warm weather adventure riding, the Explore AST Pants Short feature lightweight breathable ripstop construction with CE AA certified protection for diverse terrain exploration. Nucleon Flex Plus CE Level 1 knee armor and Bioflex CE Level 1 hip armor deliver impact protection, while adjustable positioning and external protector pockets ensure customized comfort on and off the bike.