Ok, I've done the Topo Chico thing and the La Croix thing. I've been on a Polar kick these days, but man-oh-man, do these blow them out of the water (har har). 

Kimino is a collective made of Japanese farmers and Japanese craft drink makers. These are made with carbonated spring water and fruit juice (not 'fruit essence') so they're a little different from the aforementioned seltzers.

What makes them so special? Ask any Japanese person and they will say "it's the water". It's always the water. These are made with spring water collected from the mountains of Hyogo. The water is carbonated and then mixed with a touch of fruit juice sourced from small, multi-generational family farmers focused on natural farming techniques throughout Japan.

Yuzu: made with handpicked yuzu from the Shikoku Islands and mountain water from Hyogo, a region famed for its water. 1 calorie.

Ume: ume is the fruit that is used to make umeboshi pickles. They're kind of like apricot and are tart and slightly tannic. This seltzer is hands down my favorite one. It's tart without being sour :) The ume are handpicked in Wakayama and whole-pressed. Ume is a stonefruit, FYI!! 2 calories.

Ringo: ringo is Japanese for apple, and this soda reminds me of German Apfelschorle (apple spritzer). It's just Fuji Apple juice and sparkling water. If you love the flavor of apples but think apple juice is too heavy and sweet, this is perfect for you. I know I said the ume seltzer was my favorite, but this one definitely gives it a run for its money! 32 calories.

8.45 fl oz

All three are vegan, soy-free, gluten-free. The ume contains stonefruit.