SiS GO Isotonic Energy Gels

Love these!

Very easy on my finicky stomach and very easy to tear and squeeze the entire contents in 2-3 seconds so these are my go-to gels for long hard climbs when I need fueling but do not want to disrupt my rhythm.

Easy on the stomach and pretty tasty, too

I'm training for my fifth full marathon but am new to gels. I really like that I can take these without water, and the flavors are nice, which I didn't expect. I haven't had any stomach issues and while a little bulky, they are easy to pack into my running vest and easy to take on the go, even in the dark. Definitely looking forward to using these for my race!

Quite Good

I like these gel packs better than most I've had. They're a little sticky if you happen to miss your mouth with any of it, but that's the only nitpick I have about them. They're pretty light in texture and I've never had any issues with them upsetting my stomach on a long run. The flavors are also pretty subtle and not overwhelmingly sweet, so you don't get sugar fatigue if you need to take multiple of them on a run. Tutti Frutti is probably my favorite of them all. As far as how effective they are, I have a couple datapoints that prove that my runs/energy levels were significantly better with them vs. without them. I'd highly recommend!