These are a perfect replacement for a bra. I am 5'4" and 112 lb. An xs fits perfectly, especially with the adjustable straps. These should be set to your preference before you wash them because they get a little bit stuck over time. The fabric is a mid weight and holds up well to multiple washes. I wear these under most of my shirts and replace them every 12-24 months. Originally posted on www.boden.co.uk