I have been eyeballing this tee to tank tutorial over at Crafterhours for quite some time, but did not have many loosefitting tee shirts to work with, but I received one from a friend a few weeks ago as a thank you gift for donating to his documentary film campaign, Saving Hubble.
A unisex t-shirt (size M) showed up and it was too big. Instead of donating it to my husband's wardrobe (because he already has one!), I chopped it up a la Crafterhours.
It works and it is very comfortable.
Food for thought: That logo is pretty adorable, right? A cartoon hubble and all, but the placement across my chest makes me feel like the thing just shot off my nipples with his little gun fingers.