I've never seen one like the one in your link in stores, they are always like the one I have, with the slip-on thingie. So if the ones without even exist, I've never seen one. So.
I'd guess that maybe the one on the Amazon site was just some sort of promo - I've caught other promo-only versions of Foster's stuff (such as books) pictured on Amazon. It's not like if you ordered that item, that you'd get the promo item as pictured. If you know what I mean. So, if I had to guess, I'd say that you'd get the one with the sleeve.