This may just look like a normal 90% cotton 10% polyester Flash Distressed Heather Grey Long Sleeve T-Shirt but I assure you that it is highly resistant to subatomic particles at the speed of light.  Hey, the Flashes used to go through a ton of clothing before anybody figured out they needed something different. This particular long sleeve t-shirt comes from Earth 2, which means I'm not entirely sure how it'll react to this world's speed force. Do we even have a speed force? And no, I'm not talking about Robert Downey Jr, Charlie Sheen,  or Keith Richards. I'm talking the REAL speed force!