120 grams of carbohydrate per hour. Dual-source. Lemon. Built for the short-and-red-hot side of the calendar — what you reach for when the format is sub-ten hours and the pace is threshold and up.
The flagship blend backs the carb rate down to a number the gut can take across a full day. Redline does the opposite — it pushes the carbs to the upper end of what dual-transport absorption can carry, flavored bright enough to keep wanting it under hard breathing.
We use Redline at the start of expedition races (first 4 hours, while we're burning fast) and on every interval block in training. We don't recommend it past about 10 hours — at that point, the flagship 4HF is the right tool.
Public release spring 2026. Until then we ship direct in 12-bag cases. Drop your email below and tell us what you'd use it for — we batch waitlist invites by use case so the right bags get to the right athletes first.