The fabric is very light weight, very breathable, and quick drying. Great for protection from the intense sun. Perfect weight for cooler summer evenings as a very light layer. I am between size small and medium, I got a small in this case and love the fit (height 5'6", weight 120). Overall, I love this shirt and would buy other colors - please bring them back! Also, I wish there was a women's quarterzip long sleeve, like the men's version!