SKINS A200 garments are underpinned by ingenious design and a scientific understanding of how compression works in sportswear... They feature our unique engineered gradient compression to enhance performance and improve recovery... Compression levels are engineered to provide the correct level of surface pressure to specific parts of the body enhancing blood circulation... This transports oxygen to your muscles faster and re-circulates lactate to boost power, speed and stamina… • 5cm mock neck with soft fabric lining for more comfort without bulk... • Stretch mesh under arm ventilation with improved position to avoid chafing... • Thumbhole at sleeve hem... • Internal silicone gripper at the hem helps eliminate top ridung up...