CNN outdoors editor Kai tested six sun hoodies made from six different materials to determine which fabrics keep wearers cooler in heat [1], [2].
Selecting the correct material for sun protection is critical for outdoor safety. The wrong fabric can trap heat against the skin, potentially increasing the risk of overheating during prolonged exposure to the sun.
The experiment involved six [1] specific hoodies, each constructed from a different type of fabric [2]. By comparing these materials, the test aimed to verify whether marketing claims regarding "cooling" properties translate to real-world temperature regulation.
Sun hoodies are designed to provide a physical barrier against ultraviolet rays while allowing for breathability. However, the effectiveness of this breathability varies significantly depending on the textile composition, ranging from synthetic blends to specialized performance weaves.
Kai conducted the field tests to see if there is a measurable difference in how these materials manage heat [1]. The results provide a benchmark for consumers choosing between various technical fabrics intended for high-temperature environments [2].
Performance fabrics often claim to wick moisture or actively cool the skin through evaporation. This trial sought to isolate the material as the primary variable to see which of the six [1] options provided the most relief from the heat.
“Testing six sun hoodies made from six different materials to see which fabric keeps you cooler”
This evaluation highlights the gap between textile marketing and actual thermal performance. As extreme heat events become more frequent, understanding the science of fabric breathability and heat dissipation is essential for preventing heat-related illnesses during outdoor activity.

