From James Perse web site: Our Standard Shirt is made in 100% cotton that is lightweight and breathable. This fabric is designed using delicate, high count yarns, resulting in a crisp, smooth feel. Style details include a shirt collar, button front closure, full length sleeves with placket at cuffs, back locker loop at neck and a shirttail hem. Garment dyed with extra softeners and silicone for a soft, lived in feel. Classic fit. Black Size 3 Gently used, just dry cleaned, smoke-free home Held up to the light you can see through shirt- very lightweight James Perse Los Angeles