This Men's Blue X-Ray Tech Shirt reveals a skeleton that has had a few "fixes" here and there. Probably someone who had a mantra of, "Sticks and stones may break my bones, but I'll do anything to keep running!" Also, a great shirt if you like to live life with the philosophy of total transparency. While INKnBURN inks don't glow in the dark, this kit looks amazing under blue light. The black drops away and all you see are the luminous bones! Great for a Halloween-themed run, but this is also a design that will turn heads any time of year. Dry I.C.E. Technical Fabric (Instant Cooling by Evaporation) Quick Wicking of Moisture Vibrant Lasting Color Flat Seamed with Seamsoft Thread for Chafe Resistance 100 Mile Ultra Tested Made in the USA