100% AUTHENTIC. MEASUREMENTS ARE AS FOLLOWS: ARMPIT TO ARMPIT WIDTH IS 21" INCHES AND TOP COLLLAR TO BOTTOM SEAM IS 28" INCHES. PULLOVER WINDBREAKER JACKET IS IN CRISP/CLEAN PRE-OWNED CONDITION. ZERO TEARS, FADING, DEFECTS, ODORS, OR STAINS! VERY LOW WEAR. SMOKE/PET FREE HOME. SEE PHOTOS AND CLICK "ZOOM" FOR A CLOSER LOOK. CHECK OUT MY FEEDBACK AND THEN BUY WITH THE UPMOST CONFIDENCE. ITEM SHIPS WELL PROTECTED IN A POLY MAILER 1ST CLASS WITH TRACKING WITHIN 24 HOURS OR LESS AFTER PAYMENT IS MADE. THANKS FOR LOOKING! TIM