👍Ultralight and Durable--- only 0.24 pounds, the tear and water resistant material provides long-lasting performance. 👍Ultra Compact Till You Open IT---easily fold into the front pouch. This super space saver can be rolled small to fit in your luggage and expanded to an extra 17L bag when you need. 👍Large capacity and good pocket Organized---17L compartment, two zippered pockets and two water bottle mesh pockets. The rommy main compartment is large enough to carry your essentials. Front zippered pocket is great for easy access such as map, wipes or keys. Two large mesh pockets are convenient for water bottles or umbrella. Perfect for day trips, adventures, travel, school, camping or even shopping. 👍Water Resistant Fabrics and Zippers---made of high-quality water resistant nylon material. Though not fully waterproof, the excellent water-resistant function keep your gear dry for at least 40-60mins in the rain. 👍Lifetime warranty--- lifetime satisfaction guarantee and friendly customer service anytime.