Macpac Torlesse pack. Purchased around 2007 or 2008 I think. It's done a fair bit of travelling and a bit of walking but is well made and still in good condition. It's 75 litres but feels like a fairly big 75. It has the conventional top opening with drawstring and lid, conventional zip to access the bottom of the pack, and also a rather unconventional system to open up the middle of the pack. Weighs about 3kg. At some stage one of the buckles broke and was replaced with a different sized one, meaning an extra buckle was (somewhat clumsily) attached - easily fixed with a new buckle to fit the original one! It's size 3 which probably doesn't mean much to anyone. I'm 175cm and pretty skinny and it more or less fits me (with the hip belt as tight as it goes).
$100. Pickup in Brunswick or post at buyer's expense.