KAILAS Running Vest Hydration Pack 8L Lightweight with Two Soft Flasks for Trail Running Hiking Cycling - B09BL26TZ9

90% highly breathable mesh fabric for ventilation and wide shoulder straps for comfort; Recommended Use: trail running training and racing, road running, and marathon.
ADF (All-round Dial Fit) adjustment system that features a dial, a lace and fixed lace guides provides quick, all-round and precise adjustment. BI-FIX system prevents water in the water flasks from sloshing when they are not enough full.
16 stretchy compartments: 2 chest pockets for 500ml water bottles, 1 chest pocket for your phone, 1 GPS device pocket, 2 side pockets, 5 lower chest pockets (1 with zipper for large phone), 5 rear pockets (1 with zipper and 1 for a 1.5L bladder)
3 ways to attach your trekking poles; Hidden trekking pole loops avoid being caught by tree branches; Reflective printings for night visibility.
Dimensions: 42x36cm (size M); Weight: 0.18kg (size M); 2 TPU 500ml water flasks included (each weighs 38g)；Rescue whistle included.

90% highly breathable mesh fabric for ventilation and wide shoulder straps for comfort; Recommended Use: trail running training and racing, road running, and marathon.
ADF (All-round Dial Fit) adjustment system that features a dial, a lace and fixed lace guides provides quick, all-round and precise adjustment. BI-FIX system prevents water in the water flasks from sloshing when they are not enough full.
16 stretchy compartments: 2 chest pockets for 500ml water bottles, 1 chest pocket for your phone, 1 GPS device pocket, 2 side pockets, 5 lower chest pockets (1 with zipper for large phone), 5 rear pockets (1 with zipper and 1 for a 1.5L bladder)
3 ways to attach your trekking poles; Hidden trekking pole loops avoid being caught by tree branches; Reflective printings for night visibility.
Dimensions: 42x36cm (size M); Weight: 0.18kg (size M); 2 TPU 500ml water flasks included (each weighs 38g)；Rescue whistle included.