Built to handle heavy loads with all the creature comforts, the newly updated REI Mars 80 pack handles extended backpacking in any season.
- Precurved shoulder straps match your anatomy for nonbinding comfort on and off the trail
- With a "rip-and-stick" torso adjustment, shoulder strap system easily slides along pack's frame to fit torsos of varying lengths
- Dual-density foam padded back panel provides a comfortable and supportive fit when carrying heavy loads
- Precurved hipbelt is designed to cradle hip bones for a natural fit and to distribute weight without sagging
- Hipbelt webbing system allows you to use a natural forward pulling motion for quick, easy cinching and precise adjustment
- Enjoy dual access to pack via the top-loading opening and the horseshoe-shape, zippered front panel opening, which works like a duffel opening
- Removable top lid pocket with water repellent zipper lets you stash the essentials you want to bring into tent; pack can stay outside or in vestibule
- Zippered pocket under lid stores maps and keys, spare batteries and other small essentials
- Front panel features a new and improved stretch-woven zippered pocket with easy access for packing often-used gear
- Internal sleeping bag compartment is created by a zippered divider, separating it from gear and clothes in the main compartment
- Utilizing 4 buckles, the pack's streamlined compression system lets you cinch and strap down loads for jostle-free carrying
- Concave head pod at the top of pack gives your head freedom of movement—no more staring at the ground
- 2 mesh side pockets hold water bottles, energy bars and other essentials you want close at hand
- Side hipbelt pocket stores those small essentials you want at your fingertips, such as lip balm and sunscreen
- Lash points on the other side of hipbelt let you attach camera and GPS pouches
- Lash straps on bottom of pack let you attach sleeping pad
- Hydration-compatible design features an internal reservoir sleeve and dual exit ports for drinking tube (hydration reservoir sold separately)
- REI is Climate Neutral Certified; as we work to actively reduce our footprint, we measure annual carbon emissions and purchase an equivalent amount of verified carbon credits
| Frame Type | Internal Frame |
|---|---|
| Adjustable Torso Length | Yes |
| Number of Stays | 2 |
| Pack Access | Top front |
| Number of Exterior Pockets | 7 + main compartment |
| Best Use | Backpacking |
| Material(s) | Nylon |
| Frame Material | HDPE/aluminum |
| Suspended Mesh Back Panel | No |
| Sleeping Bag Compartment | Yes |
| Gender | Unisex |
| Sustainability | From a Climate Neutral Certified brand |