Product Description NEW VERSION CHOICE: Ultrathin & Compact Design The 35-liter foldable backpack is your ideal travel companion, weighing just 0.87 lbs. When folded, it measures only 9.5 x 9.5 inches, making it easy to pack away in its built-in pouch—the size of a sandwich. It fits seamlessly into your suitcase or bag, ensuring that you have extra carrying capacity whenever you need it. WATER-RESISTANT AND DURABLE: Constructed from thickened water-resistant polyester, this backpack is designed to withstand light rain, keeping your belongings dry. Perfect for daily use while hiking or on casual outings. HIGH-QUALITY BUILD: Crafted from durable nylon material, this backpack features heavy-duty SBS metal zippers that are smooth and built to last. The adjustable and breathable mesh shoulder straps provide comfort for extended wear. VERSATILE USAGE FOR ALL: Ideal for both men and women, this ultralight backpack is perfect for various activities, including: - Day trips and vacations - Hiking and outdoor sports - Shopping and carry-on for flights Whether you are exploring the city or heading to the great outdoors, this foldable backpack is a practical solution that adapts to your needs. IMPORTANT NOTES: - Not recommended for children under 12 years old. - Not suitable for heavy items; lacks padding for laptops or cameras. - For cleaning, use warm water and hand wash, then air dry.