Stretch mark prevention undergarments (1) worn around a woman's abdomen, chest, lower torso, legs, buttocks and other areas for reinforcing elastic fibers in the skin and preventing stretch marks. The stretch mark prevention undergarment has an outer layer (2) made of stretchable material and an inner layer (8) of material made of a non-slip material (9). The non-slip material maintains a constant adherent traction with the skin of a wearer, thereby reinforcing elastic fibers of skin. The inner layer is arranged in a predetermined pattern or design to allow a wearer's skin to breathe through the outer layer of the stretch mark prevention undergarment. The stretch mark prevention undergarment may be in the form of underwear (14), briefs, underpants, panties, leggings (16), corsets, bras (10) or any combination thereof to help prevent stretch marks on various parts of the body.