A garment protector for protecting an outer garment from perspiration, body oils, and the like includes a chest strap configured to wrap around an upper part of a torso of a wearer adjacent to armpits of the wearer. The garment protector includes first and second absorbers attached to the strap and configured to be held at the armpits of the wearer by the strap. The under garment further includes a first arm strap attached to the first absorber and configured to wrap around a first arm of the wearer, and a second arm strap attached to the second absorber and configured to wrap around a second arm of the wearer.