The 24-7 Series Eco Tec Tac T-Shirt contains Repreve polyester made from recycled plastic bottles. Repreve is one of the most certified, earth-friendly fibers available in the world. Products made with Repreve help conserve energy and natural resources, giving the customer another great reason to recycle. 24-7 Series Eco Tec Tac T-Shirt have a traditional t-shirt fit with no pill, no snag 4-way stretch fabric that contain anti-microbial and moisture wicking properties while providing 30+ certified UV protection.