Stretch Primeknit shoes (Read 32 times)

Greetings, runners!

I recently bought a pair of adidas Rose 7 Primeknit shoes online, which were a steal. However, when I tried them out they were quite tight, mainly on the sewn area as shown in the pic. I'm also somewhat of a wide foot, which makes my toes feel a bit tight, but not so much. I can't exchange them for a bigger size at the store, since they've run out of those.

So the question is, can I safely stretch these shoes with this sort of material? Is stretching the sewn area (see picture) possible, or will it damage the shoes?