Built by athletes, for athletes

Fuel like it matters.
Because it does.

Most wearables tell you how hard you trained. Nothing tells you if what you ate actually backed it up. Real-time fueling intelligence, built by athletes who got tired of guessing.

I'm in. Join the waitlist. The story behind it
Mid-session live
74 Score
Fueling vs. output
Today's intake is tracking behind today's training load.
Exertion Fuel level Meal logged
6:40 OATMEAL NEXT: GEL DUE
Session: Zone 3 tempo, 42 min
Calories logged: 1,180
Calories burned: 1,560
Insight: fuel level is dropping faster than exertion justifies. Sessions like this one, without a mid-session top-up, have historically correlated with your RPE spiking in the final 20 minutes.

You track every rep. Every mile. Every heart beat.
Why is what you eat still a guess?

Split 01 / Origin

Why we're
building this

We're the Erskine brothers, and this family doesn't sit still. Between us, diet has quietly written the story of our training for years. A kidney issue nearly ended one brother's racing career. A consulting job put the other brother's meals at the mercy of hotel room service and airport terminals. Neither of us had a way to see it happening in real time.

We had recovery scores. We had strain scores. None of it could tell us whether the meal three hours earlier was the reason a session fell apart.

So we're building what should've already existed: a wearable and an AI layer that connects what you eat to how you actually perform, in real time, without lab work and without guessing.

Split 02 / Product

One system.
Zero guesswork.

00:00
Wear it, forget it
A sensor that reads your sweat, your hydration, your heart rate, live, during the work. No needles. No lab. Just strap in and train.
00:24
It connects the dots
Your fuel, your training, and your recovery data from the gear you already wear, fused into one picture nothing else on the market gives you.
00:47
It tells you straight
No spreadsheets. No raw numbers to decode. Just what to change before your next session, so it doesn't fall apart at minute forty.
Split 03 / Team

Brothers who got
tired of guessing

Co-founder

Peter Erskine

Ironmans. Marathons. Century rides. Open-water swims. Peter has done the kind of training that breaks most people, and a kidney issue tied straight back to his diet nearly took it all away. He didn't stop training. He started obsessing over getting his diet exactly right, because for him it's not optional anymore.

Co-founder

Jake Erskine

Jake trains like an athlete and works like a consultant, and he's watched how much diet actually decides whether a session goes well or falls apart. He got tired of guessing, so now he's building the thing that removes the guesswork: a way to dial in exactly what you eat to get the most out of your training and your health.

This isn't a lab experiment. It's getting tested in our own kitchens, our own long runs, and our own race weekends, on our whole family. Six athletes, every discipline, every age, putting it through its paces before anyone outside the family ever will.
Split 04 / Access

Stop guessing.
Start knowing.

We're building this in public. Be first in line when it's ready to wear.

You're on the list. We'll be in touch.
No spam. Just real updates as we build.