The Mountain is a manufacturer of high quality hand-dyed garments. They are 100% preshrunk cotton using inks that are environmentally friendly. Their printing process actually dyes the fabric fiber giving the shirts a soft feel unlike the heavy plastic shield created by most screen-printing companies. The Mountain is known for the colors staying bright and clear after being washed and washed. We consolidate purchases and place an order every Monday. We ship to you by Friday of the same week. Child and Adult Sizes Width: measure across the chest at bottom of sleeve. Length: measure from collar to hem on back of shirt. Size---------Width-----------Length Child S------13.3"------------17.2" Child M------15.2"-------------20" Child L-------16"-------------22.75" Child XL-----18.5"------------24.5" Small----------18"--------------26" Medium--------20"--------------28" Large---------22"-------------30.5" XLarge--------24"--------------32" 2XLarge------25.5"-------------33" 3XLarge-------27"--------------34"