As an essential pair of shorts from Alpinestars for all MTB activities, the A-Dura Liner Shorts offer an extra level of stretch for freedom of movement on the bike. The shorts are designed and constructed to provide outstanding durability and the robustness required for mountain biking environments. They also feature a secure double snap closure and side waist adjustment for a customized fit. To store your personal items, the shorts come with two zippered pockets with mesh lining.