I LOVE this jacket! It is the perfect weight (super light), and can fit in super small spaces. It's warm enough to wear by itself, but also breathable enough to layer with other jackets. Plus, it fits perfectly! I'm generally a small OR a medium in other brands (often right in the middle). I typically end up ordering a medium because I would rather have something that is too big than too small, but I went with the small on this and it ended up fitting perfectly!