On a long trail run or during a marathon you want fuel you don't have to think about: a gel that goes down easily, even when your heart rate is high and your stomach gets more sensitive. That's exactly why we carry SiS at trrail.com.
SiS makes gels, chews, bars, sports drinks and recovery drinks for every moment of your run. With the GO range you easily take smaller portions on the go, with Beta Fuel you get lots of carbs per hour in long races and ultras.
For us, SiS is above all a reliable choice: clear dosing, easy to use and tested for banned substances through the Informed Sport programme.