One size fits all adults, adjustable strap in back, cotton hat with silver underside liner. Deflects harmful EMF radiation from area of head covered by hat.
WASHING & HANDLING INSTRUCTIONS: All Spero products use silver fabric which acts as a faraday cage. The silver fabric must be delicately handled if washed. Wash by hand with distilled water and gentle natural soap. Tap water or well water will ruin this fabric as chemicals in the water such as chlorine, sulfur and fluoride are corrosive to silver.
In order to maintain effective shielding please recognize that this is a very special product, literal silver armor to shield from EMF radiation. In order to ensure the longevity of your silver lined Spero products, please know that silver cannot be washed like normal fabric. To be on the safe side, please avoid washing your Spero gear with tap water or well water, it must be washed with distilled or reverse osmosis water and gentle, citrus-free soap. Chemicals found in tap water and well water such as Fluoride, Chlorine and Sulphur all corrode and tarnish Silver, making the silver fabric less conductive and therefore less protective. A little care will go a long way with the Spero silver lined products. Please use Spero products as an EMF reduction strategy complimented with other life decisions such as getting your own EMF detection meter, not wearing blue tooth headphones, not holding a cell phone to your head, not sleeping next to a Wi-Fi router and putting your smart phone on power saving mode with a blue light filter.