Is it really necessary to carry multiple water bottles on a long, hot bike commute, or are hydration packs a more practical and efficient solution? Ive seen some riders with three or four water bottles attached to their bikes, and Im wondering if this is just a case of over-preparation or if theres a real benefit to carrying that much water. On the other hand, hydration packs can be bulky and affect the overall aerodynamics of the bike, so Im not convinced that theyre the answer either. Whats the optimal approach to staying hydrated on a long, hot ride - is it better to carry more water and risk being weighed down, or to rely on carefully planned water stops and risk dehydration? And what about the environmental impact of all those disposable water bottles - is there a more sustainable solution that doesnt compromise performance?