Description of Gregory Baltoro 70 Backpack Designed for the backcountry adventurer seeking multiple pockets and zip-thru access points, the Baltoro satiates with 70 Liters of highly organized backpack. Exclusive Response suspension technology automatically delivers a custom fit and compression stiffening panels stabilize the load. Features: Response Suspension System 3D precurved harness 3D precurved waistbelt Single 7075-T6 Stay Ventilated Aeromesh backpanel PVC Free Top, front and bottom zip-thru access Cross-over compression Large capacity front pocket Waterproof Tarpaulin bottom 210d DDR "Double Diamond Ripstop" HT nylon body with 210D HT nylon twill Auto-cant harness Gription mesh lumbar pad Dual waistbelt pockets Side stretch pockets Hideaway water bottle holder and stash pocket S 68L / 4149 cu. in. 5lbs. 5oz / 2.4 kg M 70L / 4271 cu. in. 5lbs. 9oz / 2.5 kg L 76L / 4638 cu. in. 5lbs. 14oz / 2.7 kg