After using for a year, the REI Flash 65 weighs 1.42kg is one of the lightest backpack in the market. Unlike some backpack with nice padded aero padded foam, this pack sacrifice comfort for weight. This is not one of the most comfortable pack to carry but still feels alright on ones back . What I like about the pack besides the weight are some of the features they have designed on the backpack. They do come in few sizes, so is best you take measurement of your torso before ordering.
- Removable framesheet, stays and top lid let you create a minimalist configuration for incredible weight savings
- Minimalist configuration weighs a scant 2 lbs.
- Precurved hipbelt is designed to cradle your hip bones for a natural fit and evenly distribute load weight without sagging
- Hipbelt webbing system allows you to use a natural forward pulling motion for quick, easy cinching and precise adjustment
- Hipbelt has a zippered pocket for on-the-go access to essentials such as snacks and lip balm; lash points on the other side let you attach a camera bag or GPS pouch
- Precurved, dual-density padded shoulder straps match your anatomy for nonbinding comfort and stability
- Back panel features mesh-covered, perforated foam for breathability and a fixed suspension system for low weight and easy use
- Twin aluminum tubular stays and a precurved, perforated HDPE framesheet maximize structure and minimize weight
- Under the lid, an over-the-top compression strap pulls the load in close to your back and provides a place for lashing on climbing ropes or other bulky items
- Over-the-top compression strap has a thin storage pocket to stash a few small essentials; includes a key clip and a rip-and-stick closure to secure cash and ID
- Deep, catch-all front pocket keeps large, often-used items within easy reach
- 2 mesh pockets on each side hold water bottles and other stowables
- Water-resistant zippers on top and front pockets and a rip-and-stick closure on the pocket underneath the lid allow you to safely store valuables away from the elements
- Multiple lash points on the top pocket and front of pack provide attachment points to carry additional gear
- Quick-release bottom straps accommodate a sleeping pad; side compression straps secure both large and small loads for increased stability
- Hydration sleeve and hanging clips hold a variety of reservoirs (sold separately); dual exit ports allow you to route a drinking tube over either shoulder
- Simple, lightweight tool attachment points let you quickly lash trekking poles, ice axes or other tools to the pack
- Sew-free construction on lash points helps reduce weight without sacrificing strength
- 140-denier ripstop nylon construction provides increased durability without added weight; polyurethane coating adds weather resistance
