100% cotton. Unlined. Side seam pockets. MATR-WD12. 728 RT. MATE the Label is more than a collection of women's clothing, but instead it's a uniquely designed brand of vintage-inspired pieces. Founded in 2013 by Kayti O'Connell, the line's objectives are simple: effortless, classic, relaxed clothing nothing more, nothing less. Kind of like the perfect vintage tee.