To participate simply enter the giveaway on Zevia’s Facebook page, share this Zevia Smarter Soda Secret giveaway link on your wall and if 3, or more, friends click your link and enter the giveaway, you win a free 6 pack! Free 6 pack prizes available while supplies last. Winners will receive 1 free 6 pack postcard voucher via USPS First Class Mail approximately 2 weeks after the contest closes. Winners will be notified via email confirmation no later than September 23, 2013. Additional daily drawings for Zevia branded items, including but not limited to, grills and rolling coolers, for all eligible entrants!