Mission Youth Fever Relief Cooling Towel is made of a soft yet durable brushed microfiber. The towel provides instant cooling relief for the discomfort associated with your little one’s fever. Our chemical-free cooling technology lasts for hours and is easy to activate. Simply wet with water, wring out and snap for a portable, instant cool that lasts. Disclaimer - Consult a healthcare professional if fever persists or worsens. Take your health to the next level with HSA eligible Children's Pain Relief products.