OGIO ENDURANCE Ladies Long Sleeve Pulse Crew. LOE321STAY-COOL WICKINGULTRA-BREATHABLEFLATLOCK SEAMS FOR COMFORTREFLECTIVE DETAILS, 4-ounce, 100% poly jersey with stay-cool wicking technology, Self-fabric collar, Reflective O heat transfer at back neck, OGIO Endurance heat transfer label for tag-free comfort, Set-in sleeves, Reflective stacked O heat transfers at sleeves, Thumbholes for warmth, Reflective O Endurance heat transfer at back right panel, Reflective O heat transfer at left hem