High5 gel flask flask holds the equivalent of 5 energygel sachets makes using gel while on the bike etc a one handed operation and saves working out what to do with your empty sachets features fits into the pocket of the high5 energybelt and trailbelt fast flow pull nipple with finger grips to prevent slipping dishwasher safe and transparent so that you can see how much gel you have left holds 120ml buy high5 accessories from chain reaction cycles the worlds largest online bike store