Our A4 Compression Muscle Tee is a multi-sport and fitness performance top designed to keep athletes cool during any game, run or workout. Our shirts are extremely durable with our other coupled technologies include moisture wicking, stain release, and odor resistant for easy care. Prevents the athlete from over heating by allowing the moisture to escape as well as keep the shirt easy to clean by aiding our stain and odor technology. AboutA4: A4 philosophy is simple, we believe in delivering the highest quality fabric, construction and design at the best prices in the market. We believe in developing strong, lasting relationships with our business partners and customers. We believe that our employees deserve to be treated as well as our family members. A4 has been family owned and operated since 1972. Collectively, we have 1,200 years of A4 experience and our average employee tenure is quite lengthy. We believe this speaks volumes about who we are and where we are going. Our products have touched millions of athletes who have enjoyed the technology, performance and durability built into every A4 garment. Helping athletes perform on and off the field contributes to the connection we feel with local communities all over the nation."