am actually a bissal skeptical about such concerns drinks, but I must say this I can recommend with good conscience! I go every day to the wheel and put this back several 100 meters. I am my little (40km) round several times drove hydration pack, a few times with plain water and the other time with ISOMAX it. on average I was faster with Isomax in the bladder than without! You can already see that some of the body loses during the (gate) tour of energy and ISOMAX is a perfect match, you get immediately energy and pedaling and pedaling and pedaling. clear recommendation, taste quite ok. you have to resolve in a bottle to drink before going rel. fix, readily soluble.