【Ad Fact Check: OneBoy Cooling Jacket Episode】
'Cooler wearing it than wearing nothing'
sounds irresistible in scorching summer!
But is it actually true?
If true, how does it accomplish this?
Marketing claims abound,
each slogan more eye-catching than the last,
who is actually telling the truth?
Scientific testing gives immediate answers!
Our test subject: ONE BOY Cooling Jacket.
“We purchased two latest units out of pocket,”
and brought two brave testers into 40°C+ summer midday sun!
and brought two brave testers into 40°C+ summer midday sun!
in scorching midday heat!
Thermocouples attached to chestthermocouple sensors",
Core Body Temperature
tells the true story!is much more accurate!」 更準！
Finally for experimental rigor,
we evenCut in halfto double check!
Wow! What does this actually mean?
And what were the experimental results?
Watch the video to find out results!
Supplementary discussion below; recommend reading after watching the video!
Supplementary Notes:
(To keep the video engaging, academic discussions are detailed here for interested readers)
Excluding internal metabolic heat generated during intense exercise,
static outdoor heat perception can be simplified as:
'Environmental heating rate exceeds skin heat dissipation rate'
Environmental heating includes high ambient air temperature and direct solar radiation.
In hot summer outdoor conditions,
air temperature often exceeds skin surface temperature (~31-35°C),
and direct sunlight exposure causes body heating to spike.
A healthy body sweats to dissipate heat via evaporative cooling.
Heat is carried away as sweat evaporates from skin.
Therefore, without active cooling aids,
the rate of sweat evaporation directly determines body heat dissipation!
With this premise, let's look back at cooling jackets.
Cooling jackets block (or slow) solar heating using physical shading and chemical UV resistance,
aiming for lightweight fabric not to impede body heat dissipation,
achieving the goal of 'cooler than wearing nothing'.
However, actual testing revealed:
Solar heating through the jacket far exceeds the body's heat dissipation rate!
Because the fabric's
high wind resistanceblocks airflow over skin,",
reducing sweat evaporation rate, trapping body heat,
making it feel stuffy...
leading to an unusually stuffy sensation...
'Cooler than wearing nothing' is virtually impossible statically.
However, when riding a motorcycle or bicycle,
strong airflow passes through fabric accelerating sweat evaporation,
while blocking solar radiation,
making it comfortable for riding commuters!
It also prevents clothes from absorbing traffic exhaust odors,
making it comfortable during rides.
Recommended for motorcyclists and cyclists!
Hope these notes provide helpful context!