I bought a skater dress from cowcow and was surprised at how well it fit and how good the quality was!

They have some really amazing patterns, pretty and quirky. There is also a long-sleeved version (mostly holiday patterns, from what I can see) and awesome leggings.

They run pretty true to size. I am 5'4", 145 and the medium was perfect, but the large was too big. Most are available for Prime, and they have an excellent, super fast return process.