My cousin makes t-shirt quilts like rag quilts. She used the front of the t-shirt on the front and the back of the t-shrit on the back. Sometimes she does batting but mostly not. They don't rag like the flannel does and she does not match the front and back fabrics. She does use a light weight stabilizer on the front piece. The quilts turn out cute and have enough weight for warmth in the SF bay area.