Warning! this product will melt when exposed to extreme heat or open flames, posing a risk of serious injury when melted product comes into contact with skin! extremely soft fabric for next-to-skin comfort with this compression shirt. lightweight, 4-way stretch fabrication improves range of motion and dries faster. advanced moisture transport system to keep you cool, dry, and comfortable. anti-odor technology prevents the growth of odor-causing microbes to keep your gear fresher for longer. 127g polyester/elastane