The stitch density and direction differ in hat and apparel embroidery. If you want to use hat embroidery files for shirts or vice versa, they need to be adjusted. 3D or partial 3D puff isn't available on apparel, so any previously digitized 3D or partial 3D puff hat files you have need to be digitized from scratch for apparel. We don't accept embroidery files that have been digitized elsewhere, and we only digitize files that are part of an order.
Embroidered back and/or side logos (2"x 1") can be added to the sides and back of the hat. Note that the 3D of partial 3D puff techniques aren't available for these logos.