Endura MT500 Burner Lite II Shirt utilizes a mix of lightweight antibacterial rapid-wick fabrics. with other features such as MP3 player/mobile zipped pocket for convenience. Lightweight antibacterial rapid-wick fabric Stretch mesh panels on underarm for optimal venting breathability MP3 player/mobile zipped pocket with bonded iPod port and cable leads Snug fit neck with stretch lycra panel for access Stretch Lycra cuff to allow push-up Loose fit compatible with wearing over body armour Also available in White