Enter code 'PRIME30' for 30% off everything on the website, the majority of which comes with free UK delivery too.
It would appear they're a distributor for IT LUGGAGE, but it's a good brand with decent quality for light(ish) expandable suitcases with a 10 year warranty.
The 30% off means they're by cheaper than anywhere else I can find.
IT LUGGAGE (Large) VULCAN SUITCASE, now £63 (delivered free)
IT LUGGAGE GREY HORIZON SUITCASE, now £63.
IT LUGGAGE CHARCOAL CHARLOTTE SUITCASE, now £70