Thermochromic shirts. Touch the t-shirt and watch it change color with your body heat. Improve colors.Thermochromic shirts machine washable and dryable with no color loss. The only fully dyed color changing shirts in the world to do this. Very high quality. - Heat reactive Thermochromic shirts .- 100% Ring-spun cotton fabric. Softer and more durable for better washing and wearing.- Double-needle-cover seamed neck. Keeps the collar from waving. - Shoulder-to-shoulder taping. Provides additional comfort. - Preshrunk jersey knit and double-needle sleeve and bottom hem.- Ideal for screen printing in the promotional and retail industry.- Many colour changing effects to choose from.- Machine washable and dryable.- Heat resistance formula against color loss.- High quality 100% ring spun garments.- Fully dyed t-shirt. Not low quality printed t-shirt. Dyemurex, Inc. is a the only company that has developed a dyeing process.- SAFE CHEMICALS USED IN PROCESSING. ECO FRIENDLY DYEING. SAFE FOR CHILDREN We have taken 11 years of research to provide the best colors, printing and washing capabilities with our heat reactive colour changing dyeing technology called HYPERFIX12. No other company in the world comes close to our technology.