I make my own Electrolite replacement drink.
Water, Unprocessed sea salt, honey, lemon juice
Most of the people I know don't like the taste, but it works really well and keeps me hydrated.
The mixture is :
1 Tsp - salts
1 Tbsp - honey
1 oz - lemon juice
1 litre - water
I know a couple people suggested adding those MIO flavour enhancer juice. Havn't tried it.
I usually bring 2 litres of that and 3 litres of straight water. No pop or fruit juices, they have too much processed sugar and I crash after an hour or so. Honey doesn't do that!
Nothing says loving, like a head shot!