The effect of temperature on running – adidas Climachill

adidas climachillWell, the season for moaning about how cold it is is over and it will soon be time to start saying it’s too hot. Running at an ambient temperature above 16 degrees apparently slows you down if you look at the various running calculators.

Let’s say you did a 20:01 5k last weekend and it was 16 degrees. This weekend it’s going to be 18 degrees. the following table is sobering reading. You actually have to run the effort that is equivalent to about 10 seconds faster than last week in order to go under 20 minutes.

Temperature16° c18° c21° c24° c
Adjusted Time0:20:000:20:090:20:180:20:27
Adj Pace / km4:004:024:044:05

If you are wearing a thick cotton top the situation is probably worse. Hopefully this illustrates the importance of a ‘proper’ running top that keeps you as cool as possible.

The new adidas range should do nicely. CLIMACHILL.

Here’s a recent press release from adidas, verbatim.


adidas launches its new SS15 Climachill range of temperature-control sportswear, ready for the summer season. Climachill is adidas’ most advanced cooling technology ever, promising to keep the wearer up to 36% cooler than previous adidas clothing.

The SS15 colourway is a departure from the norm, offering a sleek, all-black look that still keeps the wearer cooler than ever – even in the height of summer.

Thanks to its cutting edge instant cool sensation, advanced breathability and supreme heat and moisture transfer capabilities, the range keeps body temperatures under control even in the hottest conditions. The technology enables athletes of all levels to train harder, run longer and stay focused, enhancing performance whether in training or in the intensity of competition.

The adidas Climachill range has been revolutionary in active cooling technology due to its uniquely engineered design profile: industry-first 3D aluminum-cooling spheres are strategically located on the back and neck to correspond with the warmest area of the body, and provide an instant cooling sensation on contact. A micro fibre fabric allows the garment to act like mesh and transports excess moisture away from your skin. The revolutionary SubZero flat yarn contains titanium and maximises surface contact with skin, transferring more heat away from the body.

Real Madrid FC, Champions League winning footballer Gareth Bale commented on the new member of the Climachill range: ‘Moving from England to Spain meant getting used to a different country, culture, language and of course playing in warmer weather. adidas’ cooling technology regulates my temperature and releases excess moisture from my body, enabling me to perform at my best even in hot conditions. The new black training t-shirt is the perfect example of sports apparel that looks cool and keeps you cool.’

Dr Maarten Hupperets, Director Future Sport Science at adidas explained why it is important to consider body temperature during working out: Activity in high ambient temperatures offers a particular challenge to the human thermoregulatory system. Humans strive to maintain a stable body core temperature of about 37°C. In response to exercise, as metabolic demand and heat production increases, the body core temperature can increase up to 3°C in warm ambient conditions. To maintain a stable body core temperature, the human body will make efforts to lose excess heat. Climachill has been rigorously tested in our state-of-the-art Clima chamber as high as 122°F/50 degree Celsius exactly to find the best possible answer to facilitate body cooling. We are confident that our innovation and coolest t-shirt ever helps athletes of every level keep at their peak optimum temperature to perform at their best in any conditions’.

The new range includes tees, tanks and shorts, designed for training, running, football, tennis and cycling. It is available now from £18 at and in selected retailers nationwide.

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