Hi, thanks for the PM. Yes I have the Rush 72 from 5.11 Tactical in Olive & I really like it. It looks like a small pack when you see a picture of it but in fact it is quite big, as it holds 47 Litres. I wanted something bigger than the 35L Berghous I was using at the time & I liked the idea of a Clamshell openeing desigm. It has tons of pockets & is pretty versatile as there is a storage area between the main compartment & the smaller pocket area on the back which is designed to take a combat helmet, which gives you an idea of the size. I like it's flexabilirty in that I can only put a bit in it, pull in the compression starps & it feels like a daypack. I reckon you could get 2 Army 58 Pattern sleeping bags in the main compartment, so it's not small. If you Molled on a couple of PLCE side pouches you would be up to 80 Litres t, so it can be expanded quite a lot. It's a 3 day bag but with some smallish sleeping kit you could live out of it for a week with no problem. Dave