NWOT Outdoor Voices Dove Gray Split Back Bra XS

Never worn. Purchased at a campus sale from OV, no tags. Size XS. Size up was sold out in this color but it's too tight. Same top in all photos, I realized it looked different against gray, it is a very light heathered gray. Measurements (taken flat and unstretched): Bust (at underarm): 13" across Length: 14" (from top of shoulder to bottom of split band)