Please note that there are cheaper memory sticks out there, but you are paying a bit more for the speed.
Kingston DataTraveler Ultimate G3 32GB USB 3.0 Read 150MB/s, Write 70MB/s from amazon themselves for £17.68
This is the cheapest I have seen this and I apologise if it is already posted. I have this and it is excellent and feels very strong, but it is quite big. I would recommend this to anyone who wants a fast memory stick
Time saving with powerful USB 3.0 transfer speeds
USB 3.0 offers up to 150 MB/s read, 70 MB/s write and is backwards compatible with USB 2.0
PC and Mac ready
Durable design - solid metal sliding casing with no cap to lose
Features eight times faster than a standard USB 2.0