Alistair,
Future has changed names many times over the years I've been using it (must be at least 25!) and it has had different labels in different countries. Look for "Pledge with Future" or "Future Shine" on the label. It is labelled as "an acrylic floor finish for no wax or regular floors". It's made by the SC Johnson Company and I believe most versions contain the word "Pledge" these days. I've been using a 795ml bottle for approximately 5 years and it's still 2/3 full, so the price can't be beat!
Good luck, hope you can find it.
Cheers,
Lance