The first thing to do on arm day? pull on this adidas sleeveless training t-shirt. techfit gives you a sleek and compressive feel for distraction-free comfort and optimal all-day support. aeroready manages moisture so you stay dry and in the zone. mesh at the back keeps you ventilated. now you're ready to step into the gym. made with a series of recycled materials, and at least 60% recycled content, this product represents just one of our solutions to help end plastic waste.