When it comes to Pilates or other activities such as barre or stretching I like to say that the best are firstly materials that are soft and stretchy", says Katz "I like tops where you can see body alignment, maybe something with an open back or even wraparound tops as they also give a very elegant look. I like to wear materials that feel velvety and breathable. My personal favourite is something like a halter neck with an open back style top or a low impact cropped tank.