Gregory Zulu 45L Backpack Desert Tan Medium/Large. With an athletic look full adjustability and refined materials we straddled the line between a daypack and an overnighter. Specifications for Gregory Zulu 45L Backpack: Manufacturer: Gregory Size: Medium - Large Hipbelt Size: 27 - 53 in Gender: Unisex Maximum Loading Weight: 40 lb Weight: 3.7 lb Pack Application: Hiking Backpacking Pack Type: Backpack Pack Volume: 45 liters Color: Desert Tan Body Material: 40percent Recycled 400D Polyester Ripstop Hydration Compatible: Yes Fabric/Material: 50percent Polyester/50percent Nylon Age Group: Adults Pockets: Yes Pack Loading: Top Width: 12 in Length: 12.8 in Lining Material: Polyester Height: 26 in Features of Gregory Zulu 45L Backpack Adjustable torso provides 3.5 in of adjustment allowing for a custom fit without compromising support. Gregory's patented FreeFloat dynamic hipbelt links the hipbelt to the frame with a panel designed to move and flex with your body. 3D hipbelt design conforms to the shape of your body seamlessly providing the padding and support needed to carry heavy loads. Full-length tensioned mesh creates space between your back and the pack to allow for heat to escape and air to flow freely to cool you down. Designed around the architectural principles of tension and compression the perimeter frame provides stable yet flexible support to comfortably carry the load on your back. Constructed from Lifespan foam to provide a generations worth of comfort the shoulder harnesses are perforated to maximize airflow and comfort on the trail. Extra large hipbelt pockets provide secure easy to access to the essentials you want at your beck and call. Top zippered pocket with reflective attachment points key clip and underside zippered security pocket. Dual side stretch mesh pockets with pass-through for over or under compression. Front stretch mesh pocket with durable fabric front panel and secure buckle closure. Main U-Zip opening for open access to the main compartment. Custom ComfortGrip molded zipper pulls. Quick-pull drawcord closure and top webbing compression. Hydration sleeve with SpeedClip hydration hanger compatible with Gregory's 3D Hydro reservoirs (reservoir not included). Adjustable attachment loop and upper shock lock for trekking poles or an ice axe. Package Contents: Gregory Zulu 45L Backpack Gregory 145292-D436: Zulu 45L Backpack Desert Tan Medium/Large