"The Gregory Arrio 24 Dayhike Pack lets you hit the trail with all the necessary gear for your adventure without putting your shoulders and back through torture. The modern design provides all-day comfort on the trail or around town with its close fit that lets you move freely. The internal frame stabilizes loads, pairing with the CloudControl hip belt to maximize comfort under loads. This daypack boasts a mesh back panel with VaporSpan that enhances breathability to keep you cool, plus the breathable shoulder harness includes perforated foam that adds comfortable padding. A sternum strap includes a built-in safety whistle along with a clip for managing a drinking tube. The hydration sleeve with a SpeedClip hanger pairs seamlessly with Gregory Hydro reservoirs (not included), making it easy to stay on top of your hydration. This hiking pack has a top zip-close pocket and dual stretch-mesh side pockets that are angled for easy access. Elastic bungee loops and lower webbing attachment secure trekking poles, and a front stuff pocket with stretch-mesh gussets is perfect for stashing layers. Front attachment loops have reflective details for visibility in low-light conditions. Finished with ComfortGrip zipper pulls and molded webbing keepers. Made of nylon ripstop with a durable water-repellent (DWR) finish. Bottom is made with 40% recycled nylon, while the lining uses 40% recycled polyester. Imported.Manufacturer model #: 157884. Durable nylon ripstop with a DWR finish Close-fitting modern design for all-day comfort on trail or around town Internal frame stabilizes loads for balanced carry CloudControl hip belt maximizes comfort Mesh back panel with VaporSpan enhances breathability Breathable shoulder harness with perforated foam padding Sternum strap with built-in safety whistle and hydration-tube clip Hydration sleeve with SpeedClip hanger Top zip-close pocket for quick access to essentials Dual angled stretch-mesh side pockets allow easy access Front stretch stuff pocket with mesh gussets Trekking poles attachments Front loops with reflective details ComfortGrip zipper pulls Molded webbing keepers Bottom and lining use 40% recycled materialsSpecs: 18.9""H 11.8""W x 9.4""D Torso Length Range: 16""21"" Waist Range: Up to 48"" Volume: 1,465 cu. in./24L Weight: 1.88 lbs."