The Fabletics The O2 Tee in Green Abyss is a men's athletic short sleeve t-shirt made from a blend of polyester and elastane. It features a solid pattern with the brand's logo as an accent. This pullover tee is lightweight and breathable, making it ideal for running and jogging activities. With a comfortable fit and machine washable care instructions, this tee offers both style and function for active men looking for quality activewear.