This is a North Face long-sleeved T-shirt. I think I've worn it once or twice. It's still in good condition, but please refrain from purchasing if you are overly sensitive to used items. It has a cute pocket, and the sleeves and hem are ribbed, giving it a sturdy shape, so you can wear it on its own. The flat measurement under the armpits is about 53 cm, and the length is 67 cm.