Specification AgeRangeDescription : Adult AssemblyInstructions : Included BackpackDesign : daypack_backpack Brand : Sierra Designs BulletPoint : Expandable volume: 60L - 80L BulletPoint1 : Fan Cooling:The latest design of fan backpack in 2024! The outdoor backpack is cooled by a built-in portable fan component, which runs automatically when connected to a power bank. The fan is detachable and can be removed when cleaning the backpack. The unique notched inlet and outlet air design allows you to feel refreshed even when you're carrying your backpack on a hot day or when you're sweating profusely. BulletPoint2 : More Comfortable:The backpack straps are made of breathable fabric, adjustable shoulder strap length, sweat-proof, and moisture-expelling to reduce the feeling of stuffiness. You will feel cool after prolonged walking and exercise with this fan cooling backpack. The fan assembly on the back is made of elastic material that doesn't make your back feel squeezed. BulletPoint3 : Large Capacity and Lightweight:With a capacity of 50L and weight only 30.6oz, it won't be heavy on your back. The light backpack has a main, a center, and a small outer compartment, with four mesh pockets inside and out. The main compartment can easily hold a large bag of snacks and tissues, as well as some small outdoor gear. BulletPoint4 : Three Levels of Wind:The on/off button on the shoulder belt adjusts three wind levels, divided into weak, medium, and strong. Weak wind power 1.5w, medium wind power 2.75w, and strong wind power 8.5w. After actual test, 10,000 mAh mobile power can be used continuously for 4-4.5 hours and 20,000 mAh mobile power can be used continuously for about 8.5-9 hours, use less energy, and run for a long time. BulletPoint5 : Water-Proof:The hiking backpack is mainly made of Oxford fabrics with IPX2 waterproof, not easy to damage, out of the rain and other weather do not have to worry about the inside of the backpack being wet. CareInstructions : Hand Wash Color : Majolica Blue Department : unisex-adult ExternallyAssignedProductIdentifier : 1091320780023 ExternallyAssignedProductIdentifier1 : 054003857499 ExternallyAssignedProductIdentifier2 : 0054003857499 FabricType : Nylon ImportDesignation : Imported IncludedComponents : Rainfly InstallationType : Free Standing IsWaterproof : True ItemName : Sierra Designs Flex Capacitor 60L-80L - M/L with M/L WB Majolica ItemPackageDimensions_Height : 29 inches ItemPackageDimensions_Length : 14 inches ItemPackageDimensions_Width : 10 inches ItemPackageQuantity : 1 ItemTypeKeyword : internal-frame-backpacks LiningDescription : Nylon Manufacturer : Sierra Designs Material : Polyester MinimumTrailWeight : 1 kilograms ModelName : 80710123mjb-m/L NumberOfItems : 1 NumberOfPockets : 5 NumberOfRooms : 1 Occupancy : 1 Person PartNumber : 66016167 Pattern : Solid PocketDescription : Utility Pocket ProductDescription : The lightweight backpack of your dreams is here. Meet the versatile pack that hauls it all. The Flex Capacitors is a beast of a backpacking pack, constructed from durable nylon for rough conditions in the backwoods and built with adjustability in mind. Loosen the expanding horizontal gussets for an additional 15-20L of cargo capacity on longer backpacking trips, or cinch it tight for smaller, compact loads on fast summit days. Plus, ample quick-stash solutions on the straps, sides, and bucket lid ensure there are plenty of places to store your mid-trail essentials. However, you pack it, the Y-Flex suspension adds support so this lightweight backpacking backpack can hit well above its weight class. ProductSiteLaunchDate : 2024-08-08T13:51:54.247Z RecommendedUsesForProduct : Sport RecommendedUsesForProduct1 : Leisure RecommendedUsesForProduct2 : Travel Seasons : 4 Season ShellType : Soft Shell Size : Medium-Large SportType : Hiking SportType1 : Running SportType2 : Travelling SportType3 : Cycling StorageVolume : 50 liters StrapType : Shoulder Strap Style : Classic SubjectCharacter : sports SupplierDeclaredDgHzRegulation : not_applicable TargetGender : unisex TentDesign : camping_tent TentFloorMaterial : Nylon Theme : Sports UnitCount : 1 UnspscCode : 53121603 WaterResistanceLevel : water_repellent WaterResistanceTechnology : Waterproof Coating