This modern twist on a comfortable fitness classic synthesizesExpert knitting technologyand recycled REPREVE fibers to wick-awaysweat and control odors naturally and effectively, without chemicalfinishers. Plus, adurable4-way stretch provides the power to perform with ease and won't degrade or pill over-time. By offsetting new petroleum use, greenhouse gas emissions, and water waste, the only thing compromised is your carbon footprint.