This is the flag of Tonga — a red field with a white canton in the upper left, and a red cross centred inside it. 

The design dates from 1875 and has not changed since. 

We print it in our own workshop in Yiwu and supply it wholesale, usually to distributors in New Zealand, Australia and the United States, where most Tongan families live.

Tonga is not Switzerland, and this is the single most common mix-up we deal with. 

The Swiss flag is square, with a white cross centred on a red field and no canton at all. 

Tonga's flag is rectangular, with the cross sitting inside a white block in the corner. 

If your artwork has a centred white cross on red, it is Swiss, not Tongan.