Gregory's Z30 Backpack handles casual hikes with the kids as well as your speedy summit attempts. Its CrossFlo suspension system uses an open mesh back panel to ensure much needed airflow in warmer weather, and tensioned steel wires keep the backpack's load off your back without compromising stability. Ventilated foam gives breathable comfort to the waist belt, shoulder straps, and lumbar support. The Z30 also features a unique hybrid top loading design that opens up wide so you can find snacks at a moment's notice, and there are two pockets on both sides of the hybrid panel for valuables. There's also a hydration sleeve with a port for your reservoir hose, pockets for two water bottles, dual waist belt pockets for snacks, an internal security pocket for your keys and wallet, and a front bucket pocket for layers. Gregory also equipped the Z30 with compression straps for a secure load, and loops secure your ice axes or trekking poles when you don't need them.