William Ellery Ultralight Roughneck Shirt in SeaPea Rough Neck Shirts are 100% cotton, inspired by the shirts worn during the beginning of the outdoor revolution. The shirts they wore were inspired by the previous outdoor revolution, the California gold rush. This Ultralight style of Roughneck Shirt has a woven windowpane that provides maximum ventilation, and allows for quick drying. To test the dry time, we soaked a shirt in the lake, wrung it out well and placed it on a line in the sun. Wearable in ten minutes and almost fully dry in about 10 minutes more. The fabric appears opaque, but if you were to hold it up to the sun, it would appear sheer. A size Medium weighs 160grams. 90gsm Organic Cotton Dual chest pockets Dual rear shoulder darts for mobility Saddle hem, cut to a length that works well tucked or not Fully Flat felled seams Crack and chip resistant Acetate buttons Made in NYC, USA The SeaPea is White plaid, with a line of Green, and an off white windowpane. Measurements are taken externally, with the garment laid flat. Jake is 6'1" 165lbs and is wearing a size large. SMALL: Pit to Pit: 22" Shoulder to shoulder: 18" Shoulder to cuff: 25" High Point Shoulder to bottom hem:28" MEDIUM: Pit to Pit: 23" Shoulder to shoulder: 19" Shoulder to cuff: 26" High Point Shoulder to bottom hem:29" LARGE: Pit to Pit: 24" Shoulder to shoulder: 20" Shoulder to cuff: 27" High Point Shoulder to bottom hem:30" XL: Pit to Pit:25" Shoulder to shoulder:21" Shoulder to cuff:28" High Point Shoulder to bottom hem:30.5" Model is a perfect Large, wearing Large. We recommend sticking true to size. Wash Cool and Hang Dry