Abstract: A specialized article of clothing is configured to enhance speed and/or accuracy of a golf swing or baseball swing. The clothing employs tension and/or flexure members configured to enhance muscle function, thereby increasing muscular strength and/or speed for improving athletic performance. The tension and/or flexure members provide for storage and release of strain energy during a wearers movement. The article of clothing may be configured for alternative movements, including throwing, jumping, and running. The article of clothing may be adapted to reduce strain on fatigued or injured muscles, or it may be configured to limit the range of motion of a joint, such as to prevent injury.