Abstract: A tubular garment sheath system includes a first tubular garment sheath assembly having a first stretchable top piece, a first stretchable bottom piece, a first first end having at least one first pocket, and a first second end having at least one male fastener; and a first interior volume; and a second tubular garment sheath assembly having a second stretchable top piece, a second stretchable bottom piece, a second first end having at least one second pocket, a second second end having at least one female fastener; and a second interior volume. The tubular garment sheath system is structured and arranged to keep the first arm and the second arm warm during sudden temperature changes by shielding the first arm and the second arm from cold temperatures while preventing body heat from escaping from the first arm and said second arm.