You should search eBay for vintage Adidas sports holdalls. You'll find some cool old school designs going up pretty much every day – but you'll also find some seriously high prices in many cases too.
That's probably down to Adidas being loathe to reproduce older bag designs. The same old airline and flight bags is all you'll get from the official Adidas store. Which means some of the bag you might recall from schooldays are getting pricier year on year.
We've picked out two bags from opposite ends of the price spectrum. The once above is an amazing lightweight 1970s sports holdall, described as 'like new' and one of a number of cool designs being sold by the same seller. Unfortunately, none of those come cheap, this one on a 'buy it now' for £155 (although you can make an offer. Find out more about that one here.
Below is another 1970s bag, a more rough 'n' ready former school bag, described as 'still is very good condition', although the zip has come away a little from the bag (see pictures on the listing). That one is at £9.99 and you can find out more about it here.