If the armholes of your tank are revealing a little more than you’d like, you can easily rescue them (and your modesty) with a few little tweaks. Slouchy may be fashionable, but there’s a fine line between slouchy and ill-fitting – and that line usually comes into play when you’re dealing with an oversized armhole. Check out how with the easy to follow tutorial. But rather go to the effort and expense of buying yet another t-shirt to add to the collection, why not customize one you already have instead? With a few tweaks, a plain t-shirt can be turned into a cute little tank. No matter how big your t-shirt drawer, the chances are you get a little bored with its contents from time to time. How do I Turn an Oversized Shirt Into a Tank Top? If you sew rather than serge, remember to trim any excess fabric and finish the new seam allowance by opening the seam, pinning the edges flat, and using a stretch overlock stitch over the seam allowances. If you don’t have a serger, use your sewing machine to stitch a new seam.