It does work but the material is delicate like a pijama. I guess its living up to its relaxed title.  I just wish the fabric was a little bit thicker or higher quality for durability. It is Ideal for nighttime feeding when you're used to sleeping nude because the other bras with clasps and Velcro are too thick for sleeptime / wear. Not recommended for daytime use to pump at work because the fabric is thin and the hold on the pump flanges isn't as firm.