I needed a new sports bra for off road motorcycling after losing weight. I went with the seamless style as I'm not too large and my skin reacts to most seam tape materials. The bra fastened, adjusted and fit well. I didn't notice I was wearing it and was not jiggling at all. The best part is it is easy to put on and remove when I'm sweating. There's no way I'd buy a bra without some type of fastener. I went with the SHEFIT from recommendations as well as being a Michigan product (YAY for LOCAL!), but I'd recommend it because it works! I love that it came with a bag to wash it in.