KODA Electrolyte Powder Stick Packs are a sugar free formula with a slight effervescence that dissolve instantly.
The reason for the sugar free formulation is to allow you to add more Stick Packs to your water if required. The fact is we are not all the same and we lose varying amounts of sodium in our sweat. 
Being able to address your losses more appropriately means minimising your percentage of loss, which means better performance.