SG18
Golf hydration system
Scientifically formulated nutrition for the full four hours.
Why SG18
Most electrolyte drinks are built for a short gym session. A round asks for something longer: steady swing, clear decisions, and enough left when the card gets tight.
SG18 is three formulas for one round. Drink them in order as the day unfolds.
HOLES 1–9
You're already a little behind before the first tee, from the coffee and the rush. Prime opens with electrolytes and B-vitamins: 200mg of sodium, zero sugar, no caffeine. Early focus without a spike. The kind of start you only notice when you don't fade by six.
THE TURN – HOLE 15
The longest, hottest stretch gets the heaviest dose. 1000mg of sodium with magnesium and potassium to replace what sweat costs you, plus a slow-release carb that works for a couple of hours instead of twenty minutes.
HOLES 16–18
By now electrolytes are topped up. What slips is concentration. Finish brings 70mg of caffeine with 140mg of L-theanine in a 2:1 ratio, and tapered electrolytes for the three holes that tend to decide the card.
The Range
Each bottle is dosed for a different part of the day. Different sodium, different purpose, same system.
STAGE 01 · HOLES 1–9
Cucumber & lime
Electrolytes and B-vitamins for early focus. 200mg sodium, zero sugar, no caffeine, so the front nine stays sharp without a spike waiting at six.
200mg sodium · 0g sugar · no caffeine
STAGE 02 · TURN – HOLE 15
Blood orange
The workhorse of the system. 1000mg of sodium with magnesium and potassium for the hottest stretch, plus a slow-release carb sized for a warm four-hour walk.
1000mg sodium · magnesium + potassium · slow-release carb
STAGE 03 · HOLES 16–18
Mint ice
A measured lift for the closing stretch. 70mg of caffeine with 140mg of L-theanine in a 2:1 ratio, plus tapered electrolytes so focus stays useful through the last putt.
70mg caffeine · 140mg L-theanine · tapered electrolytes
In the bag
A full system does not have to feel bulky. Each serve is 330ml in thin-wall recyclable PET, sized for a bag pocket and a long day on foot.
The Science
Long duration. Steady sweat loss. A finish that asks more of your head than your legs. The formulas follow that shape.
Most electrolyte drinks are built for about an hour of hard exercise. A round runs closer to four. SG18 spreads the dose across that window so you still have something left on the last green.
A typical gym drink sits around 200mg of sodium. Sustain carries 1000mg, nearer what a warm four-hour round can cost you in sweat.
Finish pairs 70mg of caffeine with 140mg of L-theanine. That two-to-one ratio helps keep the curve useful through the last three holes.
"Every drink at the course was built for someone doing an hour in a gym. Nothing was built for four hours on foot in the sun. That is the gap SG18 has closed."
Early access
Launching at a handful of courses first. Leave your name and home course. We'll tell you when SG18 arrives.
