I did extensive research into ultralight packs from all over the world before finding Atom Packs in my own backyard.
I didn't have time to wait for a custom pack so I ordered a limited edition Atom which looked pretty much how I would have customised anyway. It had a wait time of four weeks but arrived in two.
I was immediately impressed by the quality of the build and attention to detail but waited to write this review until I had done a two week through hike with it. Home now and it performed to perfection and still looks brand new. I bought the optional padded belt as I knew I would be carrying pretty much to capacity every day and it was sooo comfortable.
I love all the details on this pack; the asymetric back pocket, the strap pockets which are just the right size for a phone or snack, the bottom pocket which is just right for a map or guide book and the fact that the chest strap is adjustable so you can get it just right.
Overall an amazing pack for a very resonable price.

Its been 1 year and 1000 miles with the Atom 35 (GDT + smaller trails). This is the best pack I've ever owned. Its beautiful and so well made/stitched. Quality is state of the art, as good as you could wish for. It always has a place on the wall when I'm not hiking to be looked at. I customized mine pretty extensively and I love every additional pocket/zipper that was added. There is nothing about it I would change.This year it's gonna make people on the PCT jealous.

Have about 500 miles on my Atom. Wearing this pack with a base weight under 10 lbs, it practically disappears on your back. Recently, I needed to load up with four additional liters of water, which pushes the packs weight limit. I could finally feel the pack, but it was not uncomfortable. I also have a Palante Simple and this pack blows it away for comfort, quality and ease of use. All of the pockets are deeper and carry items without sticking 1/2 way out. Build/shipping was very reasonable for cottage company. If you are ultra light, there is no better pack on the market.

I bought a standard Atom 40 a couple of years ago and since then it has been on countless adventures with me. It's a superb pack for an overnight adventure with my lightweight kit as it allows me to carry luxury items or extra clothes in a cold snap . As a daypack it performs really well also however I would recommend cutting an old rollmat to the size of the back panel for day hikes as frameless packs can be uncomfortable when carrying light loads of lumpy gear.

On my recent hike of the GR10 it performed incredibly well. The bottom pocket stretched beyond what I thought possible to accommodate the enormous amount of snacks you need when hiking all day and the stretch front pocket held my tent outer, groundsheet and pegs and other stuff with room to spare. The side pockets held my water bottles and fuel bottle secure the entire time, even when scrambling they did not budge.

I had to do a couple of 6 day food carries in the course of my month long trip. Even with my bag bursting at the seams thanks to the stupendous quantity of food I needed and carrying more than 2 litres of water bringing the weight of my bag well above what Atom Packs recommends as the maximum, the wide and well shaped shoulder straps helped to distribute the load surprisingly well.

The waterproofing has also held up over the course of time. The fabric is very durable for the weight, it was scratched by rocks and low hanging branches almost every day and the pack still looks like new.

I've had my Mo60litre custom for about a year and a half and have done 600 miles+ mostly on the CWT northbound and then southbound. I've usually carried around 12kg and not noticed I had a pack on after a day or two of walking. More amazingly the pack still looks like new and has no signs of wear or abrasion. The roll top gives you versatility in the amount of stuff you need to carry and the outside pockets allow for loads of overflow and add ons. Comfortable, beautifully made, light and practicle. Very happy.