Are you ready to beat the heat and celebrate 72-hours of sweat protection with Certain Dri? We CERTAINly are! Now through August 15th you’re invited to enter the Certain Dri 72-Hour Stay Dry. Be Confident Summer Marathon Giveaway for a chance to win your choice of Certain Dri Clinical Strength Anti-Perspirant Roll-On or Solid. 72 winners will be announced over 72 hours from August 13th – August 15th at 12p.m. ET.