The Vevor hydration backpack is a tactical daypack designed for hiking, running, cycling, camping, and other outdoor activities. It includes a 3L food-grade TPU water bladder with a wide opening, leak-proof shut-on/off valve, and dust-proof mouthpiece for convenient hydration on the go. The backpack is made from durable waterproof 600D Oxford fabric and offers an 18L storage capacity with multiple inner pockets and five Molle straps for organized gear carry. Breathable mesh back padding, padded shoulder and waist straps, tube clips, and an emergency whistle help provide comfort and security during long outdoor use.