To clean, apply color-safe fabric detergent with a wet wash cloth. PLEASE NOTE: We strongly recommend that you only use a wet wash cloth. We also recommend squeezing out most of the liquid from the wash cloth after soaking it and before applying. The product should NEVER be submerged fully in water, or soaked through, as this may damage the battery. Gently apply the detergent in an up/down motion to remove sweat stains and odor. Do this for both sides until thoroughly cleaned to your liking. We recommend pat drying any excess moisture and laying product out to air dry before storing.