3L portable tactical hydration pack suitable for cycling and other outdoor activities GBHP004

1. The material is cozy to carry and breathable. The backpack's back is constructed of breathable cotton, which efficiently relieves strain on the back. 2. Protect the purity of the water. The water bladder is constructed of EVA food-grade plastic, and the water exit is created with a seal to guard against contamination. 3. Multi-function. The water bag connected layer may store mobile phones, wallets, and other goods, and the Velcro closure makes it more practical. Glasses can be placed in the circular buckle on the back strap of the bag.