The Arc'teryx Mantis is the right choice for everyday life and day hikes, for situations where you need to carry a lot of things but the day's challenges don't require you to carry ice axes. Inside, against the back panel, you'll find a flat pocket for a separately available hydration bladder or computer. The surface fabric is lightly impregnated (PFC-free) to be water-repellent, but for longer rain, you will want to prepare by getting a separate rain cover. - The zipper opens all the way to the bottom of the main compartment - An aluminum frame structure keeps the backpack in check - Lightweight waist belt and chest strap - Lifting handle - Open, flexible side pockets for bottles - Two front pockets - Small accessories pocket on top - Fair Trade product