Not as good as prime day deals, but still decent enough price for stocking up.
Link to Red Bull Original:
Link to Red Bull ZERO:
Red Bull Sugar Free seems not joined the party yet.
Personal opinion on these flavors:
Original: Red Bull taste with tons of sugar
Zero: Red Bull Original subtracts sugar + sweeteners
SugarFree: Red Bull Original subtracts sugar add low to no sweeteners and add a little bit of salt.
+1 for the included reviews of each variety