Are you talking about a bag you can wear whilst riding or one you're going to sling in the boot of a car? I don't have any idea what the Alpinstar one is like? Got a link for it?
ruth i'm looking for a bag to put my kit in to keep it all together probly wouldn't bother normaly but it's on it's way to estoril next week on a lorry. sorry can't do a link i'm a numpty with computers