Exclusive Strava Challenge Offer - August

Having fuel you actually enjoy reaching for makes a difference — especially when you’re stacking big days week after week. That’s where SiS GO Energy Gels come in. They’re easy to carry, easy to digest, and built to keep fueling simple no matter the effort.

Science in Sport (SiS) GO Energy Gels have been a staple in endurance sports for years because they deliver simple, effective fuel without requiring water to wash them down. This pack brings together the full GO Gel lineup — classic isotonic energy, caffeine-powered options, and electrolyte-enhanced gels — so you can find the flavors and options that work best for you.

Each SiS GO Isotonic Energy Gel delivers 22g of fast-acting carbohydrates in a smooth, easy-to-consume format designed to provide energy during training and racing without overwhelming your gut. The caffeine and electrolyte versions add targeted support when you need an extra boost for early starts, hard efforts, hot conditions, or late-race pushes.

With 20 gels total, this variety pack gives you plenty of opportunities to test your fueling strategy before your next big event.

What You Get

SiS GO Isotonic Energy Gels — 14 total
2 of each flavor

• Fast, efficient carbohydrate delivery
• Isotonic formula — no water needed
• Easy on the stomach, even during high-intensity efforts

SiS GO Energy + Caffeine Gels — 4 total
1 of each flavor

• 75mg caffeine per gel for an extra mental and physical boost
• Ideal for race starts, key intervals, or late-race efforts

SiS GO Energy + Electrolyte Gels — 2 total
1 of each flavor

• Combines carbohydrate fueling with 200mg of added sodium
• Built for long sessions and hot conditions where sweat losses add up

Why SiS GO Gels?

Isotonic energy without the need for water. SiS GO Isotonic Energy Gels are formulated to be quickly absorbed while reducing the risk of stomach discomfort during hard efforts.

A flavor for every effort. With fruity, refreshing, and classic options across the GO lineup, this pack helps you find the flavors you’ll actually want to eat when the miles stack up.

Fuel matched to the moment. Keep caffeine options for when you need a boost, electrolyte gels for demanding conditions, and classic carbs for everything in between.

Get 20 gels for 30% off with this exclusive August Strava Challenge Offer.