cheers, we are popping down to cornwall for a few days next week, one of the local towns has a army surplus store, the guy who owns it seems fairly clued up, we will most prob pop in, if we can leave the waves
clothes for 3 more days, sleeping bag, parts of a tent ( it'll be split between 2 or 3 of them ) cooking equipment, water, food, a bowl and a spork, spare shoes for when they camp, sleeping mat, and loads of other crap, we had a 70 L backpack and it was full to the brim for just 1 night, that was 50 L main compartment, 2 X 10 L sides and i had a few Mollie pouches for various stuff ( mainly 1st aid kit, sun screen, protein snack bars )
the D of E insist they take loads of stuff, 1 thick Hoodie took up a shed load of space, of course everything was packing in dry bags aswell, which with all the will in the world take up more space with air
Thus the Bergen at 90 - 100 L main and 2 side pockets of 10 L with all the mollie stuff i had should mean she has enough space and from speaking to a few squadies i know over the years ( i used to work for the MOD down in tidworth and Bulford ) the bergen is the best in the world