I bought the Exped Lightning 60 in October 2015, and it was my first lightweight backpack. I bought it as a replacement for my previous backpack, a traditional pack that weighted around 3kg.
This pack is made from a 210D ripstop nylon with a 1500mm water column. It’s not considered to be waterproof, but water repellent. The seams aren’t sealed either, so you need waterproof stuff sacks or a waterproof liner, like a track bag. You could also use Mcnetts seam grip to seal the seams.
The Exped Lightning is a clean backpack without many bells and whistles. It has a large main compartment, with a small mesh pocket inside. On the opposite side of the mesh pocket there’s a pocket with solid fabric that can be accessed from the outside, through a waterproof zipper. There are also two hip belt pockets and two mesh water bottle pockets on the sides. That’s it. Exped also offers an optional shove-it bag that can be strapped in the outside of the pack. It’s got one mesh side and one solid side, and is attached to the pack through four bungee cords with hooks. I use this for rain gear, toiletries and other stuff that I like to have easily accessible. I like the simplicity of the design, and I wouldn’t want or need more pockets than this.
The pack has a roll top opening, which means you open and close it like a regular water proof stuff sack. Compression straps goes zig zag from both sides of the pack to a strap in the middle. This, and the roll top closure, makes it really easy to expand or compress the size depending on your pack volume. The straps are also long enough to be able to be used for strapping larger gear on the outside of the pack, like snow shoes or a shovel etc.
This is a framed pack, and it uses what’s called a T-Rex suspension system. It has one aluminum stay in the middle. The shoulder pads are attached to the stay, and you can adjust the back length with sliding it up and down if you open up the lumbar pad.
The pack weighs 1170g, which should only deter the most hardcore ultra lighters. The design of it though makes it able to haul loads comfortably up to 24 kg. The size, the ability to strap large bulky gear on the outside, and the capacity to carry heavy loads makes it suitable for longer unsupported trips, and trips that require special bulky gear.
It comes in two sizes, 45l and 60l. I’d recommend buying the 60l, since it gives you the possibility to pack more if you’d need it, but you could still easily compress the pack when you pack less.
I’ve had this pack since late 2015, and used it on a number of trips, both long and short. This is my favorite pack, and it is the most comfortable pack I’ve used. It’s durable, lightweight and has great capacity. I highly recommend it.