Gisselle Two Piece zip up setElevate your casual everyday look in this trendy zip up hoodie set! This set is on the thinner side & yes it runs small. So if you plan on going outside in cold weather in this it wont keep you warm. If you originally are a size small then you can remain getting your size small. If you are a medium its recommended that you size up to either a large if you want that tight cute look or an extra large to get that baggier look. .