Patagonia Merino Wool Sweater Hoody Running Jacket

Patagonia Women's Merino Wool Sweater Hoody Running Jacket Full Zip Jacket has normal wear Size: Tagged as a Medium but runs very small, would fit women's XS. Please check measurements for best fit. Measurements (measured laying flat): (Measured in inches) Chest (pit to pit): 16" Sleeve Length(pit to sleeve end): 17.5" Shoulder to Shoulder: 12" Length(back collar to bottom): 21.5"