Fit and Design: Designed for the run and beyond Sleeveless Classic fit Crewneck Flexible materials with four-way stretch allow full range of motion Comfortable and breathable fabric Hanger loop Technology: DriLayer(R) fabric wicks away sweat to keep you comfortable and dry Odor resistant: antimicrobial finish keeps it fresh between washes. Additional Details: Made with recycled fabric equal to 7 water bottles To keep your Brooks gear looking and performing its best, machine wash separately before wearing, try not to use fabric softeners, and tumble dry on low heat