H&M sleeveless tunic shirt

Sleeveless blouse. Long tunic type length, back is slightly longer than the front. V neck detail in the front. Flower pattern. I love this shirt so much but I've put on a little weight and it's too small now. I am a M/L and this shirt is a size 4 and fits like a small in my opinion. The fabric is not stretchy. It is flowy but fit around the top. No noticeable flaws, good used condition. Comes from a smoke free and pet free home.