Gregory Mountain Products Baltoro 75 Backpacking Backpack, Brick Red,Medium

Dynamic Comfort – the freefloat a3 system allows the hipbelt, shoulder harnesses, and lower backpanel to adapt and conform to your body’s unique shape.
Adaptable Fit System – the ultimate in custom pack fit and available in three adjustable torso sizes, with fit ranges that overlap with one another, allowing you to size up or down to accommodate a smaller or larger body shape.
Aircushion Backpanel – padding provides true on-the-back breathability, eliminates pressure points, and has moisture-wicking cooling benefits.