Simply add tequila. The same perfect blend of zesty Mexican limes, agave & sea salt, with 58% less sugar & calories. Mix with the best. At Fever-Tree, everything we do is driven by taste. Since founding our brand in 2005, we've never stopped in our quest to create the best tasting mixers, traveling the globe in pursuit of the finest ingredients. Charles & Tim. Fever-Tree Co-Founders. Makes 6 cocktails. Please recycle.