eBay and Craigslist finds

are on sale for £25 at the north face store in covent garden. usually £45/£35 online. got one yesterday. they are OK, waterproof etc and the strap seems pretty reliable. black only i think.
they look like this:

I have one of these, well worth £25 as I've had it a couple of years and its still going strong. Only problem is the main strap can shortened but the mechanism means it doesn't stay shortened with heavier loads