300g of Fuel. One Flask. Zero Fuss.

Stop stuffing your pockets with gel packets. The Precision Fuel & Hydration Flow Flask 300 is a lightweight, soft flask designed specifically for carrying PF 300 Flow Gel, giving you up to 300g of carbohydrates in one compact, easy-to-track container.

Load the entire PF 300 Flow Gel pouch, stash the flask in your running vest or race kit, and sip your fuel as you go. The soft, collapsible design keeps things streamlined while the graduated markings make it easy to see exactly how much fuel you've taken in.

Less packaging. Less fumbling. More fuel where you need it.

WHY YOU’LL ACTUALLY LOVE IT

• Carries 300g of carbs — Holds an entire pouch of PF 300 Flow Gel, giving you a multi-hour fuel supply in one flask.
• Built for Flow Gel — Designed to handle the thinner, pourable consistency of PF 300 Flow Gel so you can fuel without dealing with individual gel packets.
• Track your intake — Graduated markings let you see how much fuel remains and keep your carb intake on target.
• Soft and collapsible — Easy to carry in a running vest, pocket, or race kit without the bulk of a rigid bottle.
• Easy on-the-go fueling — The flask is designed for controlled sipping, so you can take in fuel without stopping or tearing open packets.
• Less mess, less waste — One flask replaces a pile of individual wrappers and keeps your fueling strategy simple.
• Made for long efforts — Ideal for marathon training, ultrarunning, cycling, triathlon, and any workout where keeping your carbs coming matters.

WHO IT'S FOR

• Ultrarunners who need a simple way to carry hours of fuel.
• Marathoners and trail runners who want easy access to carbs without constantly reaching for gels.
• Cyclists and triathletes looking to simplify their race-day fueling setup.
• Everyday athletes training for long-distance events who want a cleaner alternative to carrying multiple gel packets.

HOW TO USE IT

1. Fill it. Rinse the Flow Flask with water, then pour an entire 300g PF 300 Flow Gel pouch into the flask.

2. Carry it. Stash the soft flask in your running vest, pocket, or race-day setup.

3. Sip and track. Take small, regular sips throughout your effort and use the graduated markings to keep track of how much fuel you've consumed.

Pro Tip: Pair PF 300 Flow Gel with your preferred Precision Hydration product for electrolytes and fluids. The Flow Gel itself contains carbohydrates but no electrolytes or caffeine.