Abstract: The present invention is a novel pattern of men's undergarment (underwear, undergarment t-shirt) intended for an ability of the wearer to have an upper wear article of clothing to be worn without the underwear being exposed from underneath the upper wear garment when the two are worn together. The present invention's undergarment's neckline pattern has a low (round, boat slit, crew, etc.) neck opening with the neckline border line extended out towards shoulders and down towards the chest and the back so that when the upper garment, shirt and the like is put on (worn) over, the invented undergarment from its neckline's border downward and sideward is out of sight.