AONIJIE Hydration Pack Backpack Lightweight Breathable 12L Outdoors Trail Marathoner Running Cycling Race Vest for Men and Women (Black, M/L)

Capacity: 12L, S/M: Recommended Bust 78-90cm, M/L: 90-102cm, L/XL: 102-115cm ,MATERIAL: Nylon+Polyester Fiber+Spandex. Applications: Our Waterproof And Sturdy Running Water Vest Aims To Accompany Your Trip Of Running, Marathon, Jogging, Hiking, Climbing, Cycling, Walking, Backpacking, etc. Design: Sliding Chest Clasps Allow For a Snug Fit To Eliminate Bouncing. Breathable Shoulder Straps And Mesh Padded Back Add Extra Comfort. Lightweight: The Hydration Pack Is About 8.6 oz/300g Of Barely Noticeable Weight,Which Delivers A Close, Comfortable And Chafe-free Fit. Ultra Hydration Vest Provides You With The Max Support And Min Burden.