Fort Atkinson Feathers Slim Fit PoloSee the size chart. This polo runs small, if you're on the fence, size up. CUSTOMIZABLE: Add Name and Number. Don't want one or the other? Just enter a space. Sizing Tip: Lay a top that fits you well flat. Measure across the chest, 1" below the armpits and from the top shoulder to the bottom hem. Choose your size based on the measurements on the sizing chart. 95% polyester, 5% spandex Fabric weight: 5. 60 oz. yd. (190 g m) Stretchy jersey material