H&M Divided Basic Soft Jersey Tee Shirt top. Size M. Tiny black and white stripes with burgundy trim on arms and neck. Width under arms is about 18”. Sleeve length is about 7”. Length is about 22.5”. 60% cotton 40% polyester. Material will stretch some but not a lot. If you are tall, it will look like a crop top. Worn once. Line dried. No defects. Bought from H&M for $15.