Lukka Lux women's lightweight athletic top, long sleeve with thumb holes at cuffs, 1/4 zip for adjustable ventilation and mock T look when zipped up, navy blue, smooth lightweight fabric, size M. Would make a nice light and stylish base layer in colder weather. Good pre-owned condition. Smoke free home! Measurements taken while lying flat. 19 inches from armpit to armpit. 25 inches from lower collar seam in back of neck to bottom of shirt. 23 inches from shoulder seam to end of sleeve.