The Osprey Mira 22L Backpack makes staying hydrated on-trail more convenient thanks to the included Hydraulics LT 2. 5-liter reservoir. Osprey's eco-friendly design uses recycled materials to create this well-equipped daypack. An ice tool loop and proprietary Stow-On-The-Go trekking pole attachments prepare us for more intense terrain and an included rain cover keeps our pack's contents safe if a storm rolls in.