Description The Aero 28 features an ergonomic vest-strap harness system that sits close and comfortably to the body with integrated shoulder and storage pockets that allow multi-day fastpackers to keep everything they need outside of the pack and set up to carry onward. Optimized-for-access vest strap harness system keeps hydration and calories within reach Secure fixed yoke attachment of vest straps to pack Roll-top pack closure with single over-the-top compression strap and large outer stretch pocket Water bladder hang loop and hydroport Bottom stretch mesh snack pocket with trash port Dyneema Grid Stop side pockets angled for easy access and better retention of contents Fit: Take into account your typical pack size and shirt size, as well as your body type and chest measurements. With the running vest design and the likelihood of some stretch, opting for a smaller size may provide a better fit for those with a slimmer build. Features External pockets Vest: two water bottle pockets, two snack pockets, zippered phone pocket. Pack Body: bottom pocket, two side pockets, center stretch mesh pocket Zippered pockets Zippered phone pocket on vest straps Top closure Roll top with single over the top strap Hip belt Removable 1" webbing hip belt Back 1/8" Foam back panel Loops Ice Axe Loop, Loops on center panel for side compression straps or adding shockcord, loops on side panel for side compression straps, elastic loop on vest harness for trekking pole storage Side straps Four removable side compression straps, two vertical compression straps Top compression straps Single over the top strap with side release buckle Shoulder straps Vest strap style harness with spacer mesh, 100D dyneema ripstop and lightweight dyneema stretch mesh Sternum straps Three removable and adjustable sternum straps, one elastic and two webbing straps Hydroport Low profile hydroport with bladder hang loop Sealing Taped back panel Specifications White Black Material DCH50, 100D Dyneema® Ripstop, Dyneema® Stretch Mesh UL DCH150, 100D Dyneema® Ripstop, Dyneema® Stretch Mesh UL Internal Volume 28L (M) 28L (M) External Volume 8.5L 8.5L Weight 17.8oz | 504.6g (M) 18.4oz | 521.6g (M) Load Capacity 25lbs (11.34kg) 25lbs (11.34kg) Back Width 10.75" | 27.3 cm 10.75" | 27.3 cm Height 30.25" | 76.8 cm 30.25" | 76.8 cm Top Circumference 34.75" | 88.3 cm 34.75" | 88.3 cm Bottom Circumference 29.5" | 74.9 cm 29.5" | 74.9 cm Country of Manufacture Mexico Mexico