I made a custom shirt in photoshop, i'm a beginner. When I upload the shirt I don't have the option of leaving my shirt as a one strap shirt, either I have straps or a shirt shows up underneith the shirt I made, how do I fix this? Does it have something to do with Alpha Channels? I'm clueless! In "Appearance" I make a new shirt but it's not the way I designed it in photoshop.. I have the correct texture but the design seems like there's no options for that.. please someone tell me what i'm doing wrrong?