The Guitar Sleeve is an easy way to protect a valuable instrument and improve comfort. Have you ever noticed when you are playing that your arm sticks to your guitar? This is especially true in warmer weather when perspiration, salt, and skin oils affect the guitar finish. Made of cool, smooth nylon and elastane, (synthetic fiber of big elasticity), this Guitar Sleeve comfortably allows your arm to move freely, while protecting your guitar's finish from skin chemistry and wear due to friction.