Fabletics added a sporty edge to your sexy open-back tank with a stylish lace-up design. Its soft jersey fabric makes this must-have layer perfect for light workouts and hang-outs alike. Features: All-Way Stretch Breathable Fabric: Cotton Jersey 60% Cotton/40% Viscose Wore it a a couple of times just in heat temperatures of summer, but never got around to using this one while exercising. Still in very good condition and there are no stains or rips. It is very comfortable to wear especially when it’s very hot. I did add the sizing chart from Fabletics website