I have one as a spare Cliff, I can't comment on the Zips yet as mine seem fine, but have heard they can fail . Like Steve says it's slightly bigger than what I'd normally use but does have some plus points as in it does stand upright without falling over and sits high on your back rather than slumping on the top of your hips, it also comes with a handy little tackle box in the front pocket for all your little bits. As Steve said , if you want something from the main compartment make sure the top one is zipped up. The one I use is the Thinking anglers rucksack, cracking bit of kit, well made and is like a tardis and if you buy the tackle accessory box separate it fits nicely on top. Here's a camo one on eBay , Item no182401704697 Hope that helps.