Alpinestars A-Line DH Bicycle Pant Lightweight and durable main fabric, air mesh and stretch panels Innovative two-way stretch construction on the back and knees. New 2-way stretch inserts at crotch for freedom of movement Ergonomically designed for a close fit and easy integration with knee protectors Strong ripstop rear panel for extra durability and abrasion resistance; Thin, lightweight waist construction Reduced lining on waist area for comfort; Vented panels on upper thighs and lower leg Soft, lightweight TPR details; Hidden front zipper with snap closure; Lightweight and durable main fabric, air mesh and stretch panels Innovative two-way stretch construction on the back and knees; New 2-way stretch inserts at crotch for freedom of movement