Columbia Womens PFG Uncharted Knit L/S L

I thought this top was perfect (and to think that I hesitated to buy it--silly me). I just received it and tried it on.I usually buy an XL in Columbia tees and I feel comfortable in that size.The Cirrus Grey Uncharted Waters color is grand, and looks equally good on a brunette . . . it fits exactly how it looks on the model . . . slightly loose and has a dreamy looking color to it. I tuck in all my tops and I mostly wear jeans.My estimated measurements are 40"- 33/34"waist- 40"hips. I purchased the XL and the fit was a little loose at the waist and back area, and that is exactly how I like my tops to fit.I usually buy Large or XL and sometimes a Medium--depending on the manufacturer. I never wear "very" form-fitting clothes.I hope this helps regarding determining the size you should aim for. This top looks great with blue jeans, or when the spring/summer seasons arrive in a few months, white or pale color jeans will look grand with this top.