Take all this good advice and buy the Rema patches, but also use their vulcanizing fluid to apply the patches. Rubber cement is not what you want with Rema patches.
In our area, everything that manages to grow has some kind of thorn attached to it. I have tubes with multiple Rema patches on them and they are a permanent repair when used with their glue (or fluid as they call it).
'06 950 Adventure S
'10 Husaberg FX 450
'01 KTM 520exc