In reply to Andrew Nonimus: Osprey have been making packs (and only packs) for 27 years, so I reckon you can take it that they know what's what. As you say they are reasonably new to the UK. They are a small specialist company based in Colorado, sort of the POD of the USA market (but have been going much longer than POD). If you want innovative well thought out design, great carry and super lightweight then buy the Ceres 50. If you want simple, no frills, not very modern design, but yes very tough but also quite heavy then buy the Pursuit. I'm sure that loads of people are prepared to post saying they rate the Pursuit but as Osprey haven't been in the UK that long you are probably not going to get many posts on the merits of the Ceres 50? Hope this is of some help?