Reusable sports nutrition setup
The new way of fueling performance
Energy gel and drink mix in refillable packaging. You fill your flask and your bidon, we take care of the carbs. Up to 50% more economical than single-use gels.
The range
Everything for your setup
Carbohydrates
Refill Bottle 500 ml
Citrus-flavoured energy gel to fill your flask. 330 g of carbohydrates per bottle.
Gear
Flask 150 ml
Reusable flask with room for 100 g of carbohydrates.
Hydration
Drink Mix 750 g
Carbohydrates, electrolytes and B vitamins for your bidon.
Gear
Bidon 500 ml
Reusable 500 ml bidon for your Drink Mix.
How it works
Pay for energy, not for packaging
Energy, hydration and gear designed to work together.
Energy
Energy gel from the refill bottle
Concentrated energy gel in a premium flask. No more tearing open sachets.
Hydration
Drink Mix for your bidon
Carbohydrates, electrolytes and B vitamins in a tub made from a single type of plastic. Easy to recycle.
Gear
Flask and bidon
A 150 ml flask with room for 100 g of carbohydrates, and a 500 ml bidon. Both reusable.
Pour energy gel from the refill bottle into your flask. The scale shows how many grams you take along. One 500 ml refill bottle holds 330 g of carbohydrates.
Take in energy gel and Drink Mix on the go as you need it: whenever you want and as much as you need. No need to force down a whole sachet at once.
Refill your bidon and flask for the next session. No sticky, non-recyclable wrappers in your jersey pocket.
Discovery Pack
One system, endless refills
Everything you need to get started: a refill bottle with energy gel, a reusable flask, a bidon and a Drink Mix. With free shipping.
- Refill Bottle 500 ml330 g carbohydrates
- Flask 150 ml100 g per fill
- Bidon 500 mlFor water or Drink Mix
- Drink Mix 750 gFor your bidon
- ShippingFree
Not for sale yet. A reservation is free of obligation: you only pay once the pilot batch is ready and you confirm.
For every endurance sport
Four disciplines, one system.
Cycling
From club ride to gran fondo
Flask in your jersey pocket, Drink Mix in your bidon. One full flask replaces four classic gels.
Running
From 10K to marathon
Take in energy gel as you need it, without stopping to tear open a sachet.
Triathlon
From sprint to full distance
The same energy gel in your flask and your bidon. One system for bike and run.
Trail
From short trail to ultra
Top up from your drop bag. No waste to carry to the finish.
Why refill
One flask or a pocket full of sticky sachets.
The refill system is up to 50% more economical than buying single-use gels.
| Per 100 g of carbohydrates | Reduro | Classic gels |
|---|---|---|
| Price (from a refill bottle) | €5,14 | €10,00 |
| Waste | 0 sachets | ±4 sachets |
| Easy to digest | Yes | No |
| With electrolytes | Yes | Sometimes |
| Glucose-fructose ratio 1 : 0.8 | Yes | No |
Based on €2.50 per single-use gel with 25 g of carbohydrates and 330 g of carbohydrates per refill bottle.
In development
What we're still building and testing
A reliable refill system for energy gel doesn't exist yet. That's why we're developing it together with endurance athletes, in short cycles of building and testing.
Formulation
A concentrate with a fixed glucose-fructose ratio of 1 : 0.8 and extra sodium.
Dosing and flask system
Accurate dosing per serving, and a flask that is dishwasher-safe and hygienically reusable.
Materials
Which materials score best on food safety and recyclability? The Drink Mix comes in a tub made from a single type of plastic.
Become a test pilot and help build Reduro.
We're looking for endurance athletes who test prototypes in training and tell us honestly what needs to improve: taste, dosing, stomach and hygiene.
Do you create content? Help build Reduro.
Do you create content about cycling, running or triathlon and want to help promote Reduro in the future? Sign up and we'll get in touch as soon as the pilot batch is ready.
Frequently asked questions
When can I buy Reduro?
We're aiming for a first, limited pilot batch in the first quarter of 2027. The pre-order is open for Belgium and the Netherlands. Those on the list hear first.
What is Reduro?
Reduro is a Belgian brand of refillable sports nutrition for endurance athletes. Instead of single-use gels, you fill a reusable flask with energy gel from a refill bottle, and fill your bidon with Drink Mix. One 500 ml refill bottle holds 330 g of carbohydrates, a full 150 ml flask 100 g.
Do I have to pay anything now?
No. A reservation is free of obligation. We only ask you to order once the batch is ready, and then you decide again.
How many carbohydrates are in a flask?
A full 150 ml flask holds 100 g of carbohydrates (0.67 g per ml), with glucose and fructose in a 1 : 0.8 ratio and extra sodium. One 500 ml refill bottle contains the same energy gel: 330 g, enough to fill your flask more than three times.
How much more economical is refilling than single-use gels?
Up to 50% more economical. For 100 g of carbohydrates you pay about €5.14 from a €16.95 refill bottle, compared to about €10 for classic 25 g gels at €2.50.
What flavour is the energy gel?
We're starting with one flavour: citrus. At first we considered a flavourless energy gel, but our survey of endurance athletes showed that wasn't a good idea. Other flavours may follow; test pilots get a say.
Is a reusable flask hygienic?
The flask is designed to go in the dishwasher. We're testing that over dozens of wash cycles before launch.
How many carbohydrates do you need during exercise?
During long efforts many endurance athletes aim for 60 to 90 g of carbohydrates per hour, depending on duration, intensity and what your stomach is used to. A full Reduro flask holds 100 g of carbohydrates. Build up your intake gradually in training.
Which sports is Reduro suitable for?
For endurance sports where you need carbohydrates on the go: road cycling, gravel and mountain biking, running and marathon, triathlon, and trail or ultra.
You reserve without obligation. You only order once the pilot batch is ready.
A first, limited pilot batch in Q1 2027, for Belgium and the Netherlands. Those on the list hear first.
Get in touch via the contact page.