Whats the best way to have shirts made from my own fabric?

I would like to make blank tee shirts made from high quality fabric to my specific dimensions. Seeking advice for factories or companies to use. or:I

I would like to make blank tee shirts made from high quality fabric to my specific dimensions. Seeking advice for factories or companies to use.

or:I would like to make blank tee shirts made from high quality fabric to my specific dimensions. Seeking advice for factories or companies to use.

or:You make your own fabric. I CALL DIBS ON THE SILKWORM WHO CAN TYPE!

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