CoreCtrl – Cooling System™ by Alistair Brownlee

A simple, structured 8-day routine designed to support your body ahead of hot weather events. Take one sachet daily for 8 days, with the final dose on race morning. Follow the clear daily guidance for best results.

  • Marathon and ultra runners facing warm race days
  • Triathletes and Ironman athletes competing in hot climates
  • HYROX and functional endurance competitors
  • Cyclists and outdoor athletes training in summer conditions
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from 520 reviews
Sam - Awesome as Always

Had to rush some parts of the order, and he made it happen! Training was back on track because of him.

Afiq Syazwan Mohd Shahru
Precision Fuel & Hydration PF30 Gel

Maurten Gel 160

Moo Weng Fei
Maurten Gel 160

Precision Fuel & Hydration PF 300 Flow Gel

Li Yijun Damian
Precision Fuel & Hydration PF 300 Flow Gel

Precision Fuel & Hydration PF30 Gel

Nezam Noor
Precision Fuel & Hydration PF30 Gel

Precision Fuel & Hydration PF30 Caffeine Gel

Nezam Noor
Precision Fuel & Hydration PF30 Caffeine Gel

Great energy gel and so far no stomach issue

Ronnie Chin
Maurten Gel 100
Refreshing and clean taste

The mix is easy to dissolve, without leaving and clumps behind. Taste is refreshing and clean

Melvin Lee
SUPERnatural+ Rapid Electrolytes - Peach Oolong
Good gel

Good taste and it packs a punch

Nicholas Burns
Maurten Gel 100 Caf 100
Great taste and gentle on the stomach

After I unfortunately tried other gels (United, Amino Saurus) from RDRC and Key Power Sports, they always go out of stock at the worst possible time. Worse, these companies also have no communication or visibility to runners to help them plan their nutrition for the season.

Simply Active is simply better, and the Maurten gels are great tasting. They are a bit more “solid” than other gels, so you should practice taking them at race pace.

Nicholas Burns
Maurten Gel 160

Precision Fuel & Hydration PF 30 Chew

Ruth Cutaran
Precision Fuel & Hydration PF 30 Chew

nice taste

Emmanuelle Booker
PURE Whey Protein - Salted Caramel - 17 serves or 33 serves
Reliable store and products

Requested early deliver, and arrived on time. The gels have long expiration date. Will def shop here again.

Sarjono Suryadi
Maurten Gel 100 Caf 100
Love this carbs

Easy to digest and convenient to mix with the electrolytes & taste of my choice

Sebastien B
Precision Fuel & Hydration Carb Only Drink Mix
Moved my butt to this and won’t change :)

Started to use this cream 1ish year ago… and much better than previous ones used, really feel more comfortable on long rides :)

Sebastien B
Chamois Butt'r Anti-Chafe Cream (235ml)
Best service and knowledge

I just want to thank everyone at simply active store for helping me

Lawrence Law
Precision Fuel & Hydration Bottle 500 ml

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