The Styrkr Marathon Kit
The Styrkr Marathon KitThe Styrkr Marathon KitThe Styrkr Marathon KitThe Styrkr Marathon Kit

The Styrkr Marathon Kit

When you’ve trained well and you’re fuelled correctly, you feel like you can go perform anywhere. Expand your horizons with the ultimate marathon prep bundle from Styrkr. Now you can go destroy the competition!


  • Mix90 x6
  • Mix90 caff x6
  • Mix60 x12
  • Gel30 LCit x 4
  • Gel30 Caff x 4
  • Gel30 Nitro x 4
  • SLT07 x1
  • Soft Flask x1
  • 150ml Chammy x1
  • 150ml Warming x1
  • 150ml Soothing & Cooling x1

*All pictures shown are for illustration purposes only. Actual products and colours may vary, subject to change based on current stock levels


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Endurance Fuel, Backed by Science.

All Styrkr drinks, gels and salts have been specifically engineered to produce unique effects in the body – specifically, the bloodstream – that reduce overall fatigue and energy expenditure while maintaining power and increasing output throughout endurance activity.

Complete endurance fuel

We don’t just give you the most effective carbohydrate fuelling, our active ingredients like L-glutamine reduce the accumulation of blood ammonia concentration during exercise, lessening fatigue and boosting your performance.

Perfect carb ratio

Styrkr drink mixes and gels contain two transportable carbohydrates – maltodextrin and fructose – at a ratio of 1:0.8 to improve the exogenous carbohydrate oxidation rate and cause the least amount of gut discomfort compared to ratios of 1:1.25 and 2:1


Our products hit your PBs hard, not your pockets. FACT: Styrkr drink mixes, gels and salts costs less per unit than our dual-carb competitors. Our products deliver maximum carbohydrates in an industry leading price to weight ratio.


All our products are vegan society approved and made with natural ingredients.You’ll not find any colourants or preservatives in our drink mixes, gels or salts either. With Styrkr, it’s natural ingredients all the way to the finish line.

A balance of Carbs, vitamins and Electrolytes to give your body all it needs to perform.

All Styrkr products have been made specifically with athletes in mind and tested in the toughest conditions before going to market. Our gels and drink mixes give you everything you need to perform at your best and nothing that you don’t.

How many carbs do I need?

During intense activity carbohydrates are your body’s primary energy source and more can be absorbed per hour when they come from dual sources. As a rule of thumb you should be aiming for around 30-60g of carbs per hour for activities of 1-3 hours and 90-120g of carbs per hour for any activities over four hours. This will of course depend on your individual size and weight. We recommend training your gut and using our Fuel-Tool to help calculate a fuelling guide for your needs.

What goes in to The Styrkr Marathon Kit?

90g of carbohydrates

The maximum amount of carbohydrates that can be utilised by an advanced endurance athlete per hour.

1:08 ratio of maltodextrin : fructose 

Increases gastric emptying time and absorption rates to reduce gastric irritation. 

3g of L-Glutamine

Reduces the accumulation of ammonia in the blood, preventing fatigue.

The Styrkr Marathon Kit
150mg of added caffeine 

Increase alertness and reduce perceived pain and effort during exercise.

2g of Electrolytes 

Help to maintain bodily water preventing cramps and dehydration.


Helps to reduce flavour fatigue for prolonged endurance activities.

Nutritional Value Per 100g Per Serving (95g)
Energy 395kcal (1637KJ) 375kcal (1555KJ)
Fat (g) 0g 0g
Saturated (g) 0g 0g
Carbohydrates (g) 95g 90
Sugars (g) 42.6g 40.5g
Fibre (g) 0g 0g
Protein (g) 0g 0g
Salt (g) 0.21g 0.2g
Full ingredients: maltodextrin, fructose, L-glutamine, sodium (sodium chloride), potassium (potassium chloride), magnesium (magnesium carbonate) and caffeine.

Caution: May contain traces of nuts.

How to use MIX90 Caffeine 
How to use The Styrkr Marathon Kit
Fuelling the every day athlete

The Styrkr sports fuel range is the culmination of many months of research and development with one clear focus: to help everyday athletes reach their next endurance goal. We Listen to what our customers have to say and always strive to create the higest quality products that really work.

UK Manufactured


High Quality Ingredients

Vegan Society Approved

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Fuelling the every day athlete

Any questions we haven't answered?

Why “dual” carbs MIX90 Caffeine+?

During intense exercise, carbohydrates are your body’s primary source of energy and more can be absorbed per hour when they come from multiple transportable sources: in this case maltodextrin and fructose (converted to glucose in the liver). MIX90 incorporates this dual-carb system to give you that bit extra when you need it most.

How does caffeine help?

Caffeine is a well-known stimulant that increases alertness, reduces perceived effort and pain, and helps you stay focused on the task ahead. How much caffeine you require depends on how much you weigh and your tolerance of caffeine. Some trial and error will be necessary.

Why do I need electrolytes?

For activity over 60 minutes – or in hot conditions – it’s important that electrolytes are used to hydrate. Dehydration increases usage of muscle glycogen and decreases blood volume and digestive function, none of which are beneficial for endurance activity. MIX90 Caffeine+ helps replace the electrolytes lost in sweat. Water alone can cause bloating, reducing the desire to drink and fluids not being replaced properly.

What is L-glutamine?

During endurance exercise blood ammonia concentration increases causing fatigue. L-glutamine reduces this accumulation, lessening fatigue and improving performance.

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