3L ถุงน้ำแบบพกพากลางแจ้ง, ถุงน้ำกระเป๋าเป้สะพายหลังยุทธวิธี ปั่นจักรยาน

Outdoor water bag, portable water bag, 3L water backpack, tactical backpack water bag, black waterproof backpack 100% brand new and high quality. Multifunctional portable outdoor military tactical backpack bag. It is very suitable for hiking, climbing, horseback riding and outdoor activities. Fabric: Daily waterproof fabric made of ultra-light 600D Oxford cloth, durable. Inside: 210D nylon waterproof fabric The ergonomic design is suitable for the curved shape of the human back and is equipped with an extended shoulder strap, which can effectively reduce the burden. The adjustable shoulder strap fits the needs. Can hold 3 liters of water bladder