I love these so much, I now own three different colors. They work well in place of a sweater for casual walking, hiking, sitting in a cold restaurant, having around your shoulders, just in case. They have gone on planes and cruises with me and are so lightweight to tie around the waist, or shove in a pack (they don't wrinkle). yet they are warm enough to keep the chill off. I wear a medium in most things and this is no exception. The tapered fit is flattering, the zippers still work well, and they've been washed many, many times, and still come out looking brand new - no pilling. If they come out with more colors, I may buy more!
Perfect weight for us southern folks. Loved it so much I bought two more immediately. Very comfortable and keeps its shape after washes. Higly recommend this product.