This is a brand new, never worn Rare Nike x MMW Matthew Williams One Piece Jumpsuit Bodysuit Women's -XS (can fit a small) This sleek bodysuit comes from a collaboration between Nike and 1017 ALYX 9SM founder Matthew Williams that explores the future of training gear. Smooth, curve-hugging stretch-knit fabric and strategic seams based on body-mapping research enhance mobility, while mesh panels in key areas provide ventilation and breathable comfort.