Iconic women’s backpack Osprey TEMPEST 20 III features a comfortable ventilated Airscape™ back system overlayed with a durable mesh fabric. If you’re going trekking, you’ll also love the Stow-on-the-Go System™, which allows you to easily attach your poles. On left shoulder strap, you will find a stretch pocket for your phone. The backpack is compatible with a water bladder, for which you can find a designated space with a mount loop between the back system and the backpack. It also provides an option for the poles mount and the lid-lock mount for a cycling helmet.