I am always hesitant to buy sports bras online without trying them on first because I am larger chested- 36DD and need support for running. However, all of my friends couldnt stop talking about this criss cross bra so I took a chance and ordered the L and I love it. I now wear this bra every day, even under my work clothes. Its tight enough that it provides a high level of support, but not so tight that the straps dig in if I wear it all day. Love the material, love the quality, will be buying more.