Found it to be way better than expected. I normally wear a solid size M and was a bit leery of getting a S/M in case it ran towards small. Not the case! The sleeves are long enough, not skin tight and allow for a lightweight shirt underneath. The length is great over breeches, jeans or skirts. Packs well and is a great addition to a travel wardrobe.
Rated 1 on a scale of minus 2 to 2, where minus 2 is Runs Small, 0 is True to Size and 2 is Runs Big