WILD-WIND Ultra Lightweight Foldable Durable Daypack Bag - Travel Camping Hiking Cycling School MULTI-USE: The backpack can not only be used as an alternate bag for vacation, shopping, traveling, day trips, also your best choice for your outdoor climbing, hiking, trekking, cycling. THE BEST FABRIC - WATERPROOF & DURABLE: Silicification and double-finishing of CORDURA ultra-light fabrics, which are flexible, wear-resistant, stain-resistant and waterproof for you to carry. MORE COMFORTABLE: All stress points are strengthened to make you feel more comfortable and make it capable of anti-slippery; and you'll find it more useful for its added loading capacity. COMPACT: Folds up into the zippered inner pocket(smaller than your iPhone) so it easily fits in your pockets, luggage. Super small, a ture space saver. Unflods from the pocket to a perfect backpack. ULTRA LIGHTWEIGHT: The most practical and ultra-lightweight backpack. Dimension: 25L, Weight: 63G/2.3OZ.