Fabric: Polyester lining - Care Instructions: Machine Wash, Hand Wash About This Item: The Loowoko hiking travel backpack is one of the most popular hiking daypack options. Rain Cover Included - Made with high-quality non-tear polyester and nylon fabric and anti-scratch, wear-resistant. It also comes with an extra waterproof rain cover pouch on the bottom to prevent water and dust from getting into the backpack, so it protects your valuables from heavy rain and keeps everything dry. No Internal Frame - This lightweight & comfortable hiker backpack is specially designed for outdoor enthusiasts. Breathable mesh shoulder straps with plentiful sponge padding help relieve the stress from your shoulders. Outstanding Organizational Features - With a large main compartment, separate shoe separator, and six external pockets, this rucksack makes it easy to distribute and organize your gear. The bag also allows you to customize your external organization, along with ample compression straps and attachment points to carry sleeping bags, tents, trekking poles, ice axes, and more. Camping Essential Gear - With a 50-liter large capacity but only 2.1 pounds weight, it's enough for 3-5 days of travel or outdoor adventure. Fits women and men and meets size requirements for most airlines. A must-have daypack for hiking, camping, backpacking, trekking, mountaineering and traveling.