The Osprey Hikelite 18 L Backpack is a lightweight pack for day hiking. Move at your own pace on the trails, with all the confidence that your pack is holding onto the essentials for the adventure. The AirSpeed tensioned mesh backpanel provides ventilation and keeps weight off your back, maintaining comfort from beginning to end. It's hydration compatible, just bring your own reservoir and hang it internally, or bring water bottles and utilize the side mesh pockets. Stash extra layers, lunch, first aid, and more; the included rain cover will keep things dry when the weather isn't.