If you have a problem hand sewing your patch because it’s too thick, you can ether glue it on a backpack or use a machine to sew it on; If there is no glue on the back of the patch, and you don’t have a machine at home, try reaching someone who possesses one, or going to the tailor to ask for help. Try not to waste your time trying to hand sew the thick patch onto a bag, because you will have trouble to push the needle through both the material and the sticker.