This mens undershirt 205428-100 of Schiesser has a five percent elastane. This causes a good fit and, together with the processed pima cotton a smooth and silky feel surface. In addition, the undershirt runs therefore not a well after first wash. In white, it is boil-proof, so with 95 degree wash, colorful with in 60 degrees. Incidentally, it is known from the best and long-lasting brand quality from Germany.