Under Armour UA Rush HG Compression LS-RED T-shirt. Men's long-sleeved compression t-shirt with innovative Rush technology. Rush technology uses fibers enriched with minerals to recycle the energy used and bring it back to you. Strategically placed Mesh panels provide extreme breathability. Thanks to anti-odor technology to prevent the growth of odor-causing bacteria, you will stay fresh longer. Modern collar design offers more coverage andelegant appearance. The raglan sleeve cut provides extreme mobility.