I ordered the large. It fits nicely, but is not THAT oversized, so if you want lots of room, go bigger. I washed and dried mine at medium temp, and it washed and dried just fine, no shrinking or pilling or melting, as someone else's review stated. They only reason I didn't give five stars is because it's advertised as flannel, but it's actually a short fleece outside, and furry fleece inside. I would have liked it to actually be flannel, but it still looks nice and is so comfy. I am 5'3", 155 poSee full review