A cotton T-shirt designed and developed by Fujian Hongxing Erke Sports Goods Co., Ltd., in the sustained coolness performance test, after washed 5 times, and over the course of the next 60 minutes, the highest temperature it reached was 26.9℃. Verified by the WRCA, the T-shirt was confirmed as the “Longest lasting cotton T-shirt with sustained coolness (below 27℃)”.