https://qz.com/1297856/amazon-is-challenging-la-croix-with-365-sparkling-water-at-whole-foods/ > Amazon and Whole Foods are about to shake up the US seltzer market. > Whole Foods is currently offering steep discounts on 12-packs of flavored sparkling water by 365 Everyday Value, its private label, at stores in the San Francisco area. The $3.99, buy-one-get-one-free deal is exclusive for Amazon Prime members who download the Whole Foods app and sign in with their Prime accounts. It’s also a clear shot at LaCroix, a popular seltzer brand among American millennials, a 12-pack of which retails for $5.99 at Whole Foods stores in San Francisco.