This is a Christine Johnson tee shirt pattern.
This tee could be called a wearable muslin, because my ultimate goal is to make this tee in silk jersey. But it's much more than a muslin. I used very light-weight rayon jersey, and in this loose fitting tee, it's like wearing a gentle spring breeze. The intended purpose of this tee is night wear. It's easily the most comfortable nightwear garment I own, perhaps the most comfortable I've ever owned. From laying out the pattern to the final stitch, it took only about an hour to make it. I sewed and finished all the seams in one pass of the serger and didn't bother with hems. It's so comfortable that after I tried it on (great fit) I couldn't bear to take it off.
I wish I knew exactly what sort of fabric this is, so I could get more. It would be wonderful to use for camisoles. I keep saying I'm going to start a notebook with detailed descriptions of all fabrics I buy, a swatch attached to each description. So far I have not taken the time to do this, but I really must start.