Osprey Manta AG 36 backpack In green 3mm Lightwire peripheral frame tensions the mesh and transfers the load from the harness to the hipbelt 3D tensioned mesh comfortably wraps and conforms to the body while providing excellent ventilation Mesh-covered, die-cut foam provides an active, contouring fit and ventilation Fabric shove-it pocket and large zippered pocket with internal mesh pockets on the front panel Panel-accessible main compartment with internal mesh pocket Heat-embossed, scratch-free zippered slash pocket; dual-access side stretch-mesh pockets; dual zippered hipbelt pockets Helmet attachment loop / blinker light attachment Direct-access zippered hydration compartment holds a Hydraulics™ LT 2.5 liter reservoir Dual upper and lower compression straps; Stow-on-the-Go trekking pole attachment; integrated raincover; magnetic bite valve attachment on the sternum strap