Which studies? Do you mind posting one, or maybe a short extract?
It’s a basic law of thermodynamics that black (and all darker colours) attracts and absorbs more heat than lighter colours.
To quote Scienceline “…black absorbs the most heat. A black object absorbs all wavelengths of light and reflects none. Objects that are white, on the other hand, reflect all wavelengths of light and therefore absorb the least heat.”
Why do you think solar panels are black? Why do you think black clothing dries faster on a clothesline than whites?
P.S. I’ve seen people pointing to the success of NZers as some sort of proof that black doesn’t decrease performance. That may be valid, if their success were in events that were dramatically affected by heat. Unless it’s unbearably hot and humid, the result of a mile or 1500m race is not going to be drastically affected by the heat. I haven’t seen NZers have the same success in events such as the Marathon or even the 10,000m, despite having the most appropriate training for such events throughout the 60s and early 70s.
That's not a part of any of the 4 laws of thermodynamics. Not saying it's untrue, but it's not covered by the laws of thermodynamics. People look silly when they try to be smart but are not.
Choose the color that fits your people the best. Keep a chart of what colors they wear each day, what color are their cars, what color they painted their house, etc. Then run an analysis of state champions from your state and the colors of their jerseys. Blow up different colored balloons and see what ones they choose ... now you are getting close to making your decision.
Are you buying your singlets at Wal-Mart? We've worked with Schoeller, as have most Tour de France kit manufacturers, endurance sports brands, etc., so you can wear any color you want. All the research is on their website. Watch the Tour this weekend and watch teams win in Black and watch Tiger in is prime win in Dark Red.. oh, and perhaps my dark skin in marathons, etc., perhaps a negative for Kipchoge?
All about coldblack® What is coldblack®? coldblack® is a finishing technology designed for textiles that are exposed to sunlight over extended periods. coldb
Are you buying your singlets at Wal-Mart? We've worked with Schoeller, as have most Tour de France kit manufacturers, endurance sports brands, etc., so you can wear any color you want. All the research is on their website. Watch the Tour this weekend and watch teams win in Black and watch Tiger in is prime win in Dark Red.. oh, and perhaps my dark skin in marathons, etc., perhaps a negative for Kipchoge?
The existence of this technology proves my point. Why would you need a technology (ironically called coldblack) to overcome the effects of heat on darker materials, if darker materials didn’t heat up more than lighter ones?
Taken from the very website you linked to:
“Dark textiles absorb both the visible and invisible part of sunlight and consequently absorb warmth. Coldblack reduces this absorption in all types of textiles and therefore prevents dark colors from heating up.”