Gundam is a Japanese military franchise that features giant robots called mobile suits. Gundam is the pioneer of mech animes. These lounge sleep pajama pants feature an all-over Mobile Suit Gundam Logo and robot design. These pants have a elastic drawstring waist, button fly, and two side pockets. They are made of a 92% Polyester, 8% Spandex material that will keep you comfy day and night.