Undershirt of 100% lisle yarn. Ideal for men with problems of allergies or intolerances to materials that are not natural. It is an all season fabric that adapts to the body without giving up its totally natural and breathable material. It has no seams, so it does not rub the skin anywhere and is very comfortable. The neck is flat and thin with an extra strong fabric. Combine with 5476 brief. Premium quality.