I am making my own:

juice of 1 lemming (unstrained)
5 heaping tsp fructoze
1/3 tsp salt
water to fill 1 litre bottle

I ride about 3 hours but summer is very hot here even in the early morning like 35 - 40 deg C. Winter is not cold like what you gals are describing - long-sleeve dry-flo plus windbreak-y layer is enough 4 me on top and good sox
And a purple- and -blue- tones silk scarf for *style* and added windbreak