rucksack with wheels

[mckenzie]

I wonder if anyone can help me please? I am after a rucksack on wheels to use as my gym bag. It needs to be a rucksack style top zip opening with one large space (plus other small ones too if possible). Ideally the 4 roller type wheels but two wheels would suffice.
Millets do one or two but they are huge. On the internet there are lots on a US site that do Uk delivery but they are all children's size. John Lewis do some but they are mega bucks. Anyone know where else I might try please?

TIA

Any of these ok?

Thanks Seona, they are good but that company is based in the US and they want to charge me over 20.00 for shipping!!

sorry, I just saw it was priced in £'s and assumed it was a uk store - silly me!!

I'd thought it was a UK store too when i first looked but then saw that most of the comments were coming from people in the US. Great that they offer UK delivery, just a shame about the cost!!