Note: Please refer to the product size options within the "Available Options" section (below) for this product. Follow our helpful graphic/guide to find out the measurements you need: Chest: Across the chest fabric, from underarm to underarm. Length: From under the rear collar to waistband. Sleeve: Middle of the back, across the sleeve to cuff. Please note that sizes can vary slightly, especially on hand-knits and that wool does stretch naturally to fit the body. Each style of garment has a separate sizing guide, so please check the size option (in the "Available Options" section below) for the garment you are buying.