In the world of Embroidery we live by a simple rule of "if it can be hooped, it can be embroidered". Of course there are some other complications such as material type, thickness, and the general ability to accept stitching. When we talk about "hooping" it is the process of fixing the material between two hoops that then can be attached to our embroidery machine.
This is a photo of the types of hoops we use for our embroidery service. If the material allows us to accomplish a secure hoop then we are able to embroider it. The issue that we commonly come into is embroidering small spaces that don't allow us to put a hoop into such as pockets.