In the sweltering heat and cruel humidity of recent days here, exercising can be punishing. Staying hydrated is paramount, but a "cooling" shirt can be an advantage.
Digital Life tried out the Adidas Climachill, Columbia Freeze Degree and Under Armour HeatGear Flyweight Run in the 3pm heat and again at midnight.
The night run was to nullify any advantage a shirt of a lighter colour might have.
Starting each test with a 1km run in a regular T-shirt to work up a sweat, we took each of the test shirts in turn for an equidistant spin, and repeated the sequence randomly.
Adidas Climachill Tee
This short-sleeved running shirt utilises Adidas' latest Climachill fabric which is said to deliver an instant cooling effect, thanks to its titanium-blended fabric and 3-D aluminium cooling spheres.
The fabric is supposed to be 36-per-cent better at cooling than Adidas' older Climacool fabric, according to its maker.
These 3-D spheres are aluminium dots sited to cool the body's "hot zones" by conducting the heat away. The dots are on the back, just below the neck and shoulders.
The shirt used for this review is dark green. It is also available in blue, orange, dark grey or lime.
Design-wise, the Climachill Tee looks simple but chic - Adidas' signature three stripes mark the right shoulder, with the Adidas logo on the left shoulder.
Slipping on the shirt, I feel the cooling effect straight off, like a gentle waft of air-conditioning on the back. The fabric and the spheres are smooth, and comfortable and do not chafe.
The Climachill does feel cooler than my older Climacool shirts. The fabric wicks away perspiration readily, except around the neck area in front.
As I run, the cooling effect is more evident on the upper back due to the cooling spheres. The rest of the body feels the difference.
The Adidas Climachill Tee works as advertised to keep you cool and dry. Hopefully, Climachill will find its way to tennis shirts and football jerseys soon.
Fabric: 100 per cent polyester with aluminium cooling spheres
Value for money 4/5