How to create pattern like this?

[groovin]

Hi!
So I were browsing an internet for sneaker customs to find one I like, and I found these ones.
Can anyone give me idea how to make this pattern or similar to it, for example triangles.
I want to paint it on my rbks. Thanks in advance for your advices.

 

[illwillgusto]

That's a Stencil, check out Overspray collection, they might still have that one available 

 

[7792]

That print is called houndstooth if you didn't know.

 

[bwong86]

I've see some people use patterned decals as a stencil/masking technique

 

[keepburnin]

If you are gonna paint it on your reeboks, it will require a steady hand. The way they put the print on that shoe was by screen print. You can make that pattern very easily in Adobe illustrator.  But to do it by hand is very different.