OGIO ENDURANCE Ladies Racerback Pulse Tank. LOE322STAY-COOL WICKINGULTRA-BREATHABLEFLATLOCK SEAMS FOR COMFORTREFLECTIVE DETAILS, 4-ounce, 100% poly jersey body with stay-cool wicking technology, 4.1-ounce, 100% poly mesh shoulder and back panels, Self-fabric neck, Reflective stacked O heat transfers at back, OGIO Endurance heat transfer label for tag-free comfort, Reflective O Endurance heat transfer at back left hem, Reflective O heat transfer at front left hem