Supplement Deals Nitraflex Free Lifting Straps October 7, 2015July 26, 2016 Anthony C Supplement Specialist 827 Views 1 Comment min read Share the joy Free Lifting Straps with Purchase of Nitraflex Pre Workout by GAT. Buy Get While Supplies Last. Lifting Straps will automatically be added to the shopping cart once Nitraflex has been added. Cannot Combine with other deals.