William Ellery Weekender is a heavyweight, all day shirt. Built to be a lifetime supply of shirt, with reinforced seams, and heavyweight knit fabric, this shirt is durable enough to climb in, and still make a 730 dinner reservation. We recommend wearing it all weekend. 100% Cotton 12oz Heavy Weight Sewn to Rugby Tournament Specifications Reinforced Pit Seams Reinforced Placket Reinforced Neck Seam Rubber pull through buttons Name Tag Collar Expedition Society Pen Pocket Made in Canada Sleeves are measured from center back neck. Small: Chest 38-40" Length 27" Sleeve 33" Medium: Chest 40-42" Length 28" Sleeve 34" Large: Chest 42"- 44" Length 29" Sleeve 35" XLarge: Chest 44-46" Length 30" Sleeve 36"