When exercising, it's essential to drink regularly to replenish lost fluid. If you drink too little or too late, your performance will quickly start to suffer. Therefore having good bottles and bottle cages is a must. The 2-screw bottle-cage attachment
is a universal standard and there's a vast choice of plastic, metal and even carbon bottle cages available. These can in principle be combined with all bicycle bottles from 0.4-0.75 litres. For triathletes, there are special solutions for the aerodynamic integration of the drinking tank to the cockpit.