J Jill Pure Jill absolutely essential long sleeve tee shirt! Everyone needs one of these to pair with a pair of blue denim jeans and to wear with layers! This works with everything and is perfect for all seasons. Super stretchy and comfortable fit. Tagged size petite small, and could work for a regular small as well depending on your desired fit. Measurements listed below taken with top laying FLAT. -Pit to pit: approx. 17.5 inches across (approx. 35 inches overall bust). -Length: approx. 22 inches. Condition: No stains, holes, or tears! I've included pics of underarms as well, this looks amazing! Please ask questions if you have any, returns not accepted. Thank you!