Alpinestars sight speedster shortslightweight durable and vented the key features which make the alpinestars sight speedster short a superb addition to any riders summer wardrobe stretch inserts on the back and crotch area give great levels of comfort and performance fit features lightweight and durable main fabric 450d incorporating strategically placed stretch panels strong rip stop rear seat panel for extra durability and abrasion resistance in key area reduced material construction on