As for comfort, the Atmos is way more comfortable, even with nothing in it. The light padding in the straps and the softer mesh material just make it less groan-inducing when it comes time to load onto your shoulders. Now, what you describe as an adjustable hip belt is in fact a replaceable hip belt so that people can choose a larger or smaller circumference. Compression Straps: Though they have slightly different placement, the suspension straps on the Rook and the Atmos are essential the same. So this all should not be understood as true objections although I list them below just that you know about them, perhaps some of them are essential to you.

Osprey has become the go-to brand for those with cash on the hip and performance in mind. But during these times when we all want to tighten our belts a little, can a brand with such a pedigree in design work its magic at lower price points? Osprey’s new Rook 50 and Rook 65 for men and the Renn 50 and Renn 65 for women have been released to take up that challenge. Delivered Monday to Saturday 8am-8pm, excluding bank holidays. Once despatched you will receive updates from the courier.Materials: Right off the bat, I noticed the materials were different. The main body of the Rok is made of 600D Polyester, which essentially means it doesn’t feel as high-quality as the Nylon Dobby of the Atmos. The Rook simply feels more…industrial? Bauer Consumer Media Ltd, Company number 01176085; Bauer Radio Limited, Company number: 1394141; Registered office: Media House, Peterborough Business Park, Lynch Wood, Peterborough PE2 6EA and H Bauer Publishing, Company number: LP003328; Registered office: The Lantern, 75 Hampstead Road, London NW1 2PL This is accompanied by a two-level load lifters design. This is very useful when you move the harness far down or far up and it ensures that the harness remains comfortable in whichever position you place it. The Flash 55 is a great value, with excellent features and a great weight to volume ratio at an affordable price