Product description Previous page Used for hanging clothes and other items Ventilated mesh and thickened support Used to secure trekking poles Made of durable material, tear-resistant Don't worry about the stitches coming loose Next page Previous page Next page Previous page Next page Is this backpack really waterproof? Can I hike in heavy rain without a rain cover? The hiking backpack is water-resistant rather than fully waterproof. The fabric like nylon will handle light rain for a short time, but during prolonged exposure, water can seep through the zippers and seams. How comfortable is it for all-day hiking? This backpack features a breathable padded back panel, mesh shoulder straps, with a chest strap and waist belt to distribute weight, keep you comfortable during all-day hiking. Will this fit as a carry-on for flights? Yes, this 20L backpack size is 10.8" × 6.5" × 18.9", which is well within standard carry-on limits for virtually all major airlines (typically 22" × 14" × 9"). How durable is this 20L backpack? Will the zippers break? Please rest assured that the hiking daypack is made of durable fabric, it is tear-resistant. It also features 2-way smooth zippers, and reinforced stitching ensures the zipper won't break. Does it have enough pockets for organization? Yes, the 20L back pack has main pocket, zippered pocket and two side pockets. It also have many compartments to store hiking essentials such as phones, snacks, maps, etc, meet your 1-2 day hiking or travel needs. PADDED COMPARTMENT & HYDRATION READY: Thick foam-padded main compartment protects your laptop/tablet up to 15.6 inches, or suitable for a 2L water bladder (bladder not included) and hose port for hands-free hydration on the trail. Perfect for day hikes and daily commutes. COMFORT WITH BREATHABLE