This versatile racerback was designed to stay put—and out of your way—when you're on the move.Light Luon®Light Luon® fabric is a lightweight version of our signature four-way stretch, sweat-wicking Luon® fabric lightweight sweat-wicking four-way stretch cottony-soft handfeel naturally breathable no size dot or tag but pit to pit is 14" therefore a size 6 based on Lululemon size chart