with tech stretch material on the chest

they use a synthetic microfiber chassis with accordion flex zones

Extended polyamide stretch material has been incorporated on the rider’s back

The stretch mesh construction ensures superb moisture wicking and breathability

The dual-zone chest protector

a dura camo liner short RGroup_1706720 with tech stretch material onAlpinestars essential go to shorts for all MTB activities, the A Dura Liner Shorts offer an added level of stretch for freedom of movement on the bike. The shorts have been engineered and constructed to provide superior durability and the ruggedness needed for the mountain biking environment. The shorts also have a secure double snap closure and side waist adjuster to personalize your fit. To store your personal belongings, the shorts have 2 zippered,