One of the biggest contributors of human scent is the head and neck area. The ScentLok Lightweight Tonal Hat helps combat unwanted odors with two powerful technologies. Carbon Alloy combines the power of activated carbon, treated carbon, and zeolite to adsorb the wide spectrum of odors generated by your body. Gold+ Alloy technology utilizes non-ionized gold and silver particles that are permanently bonded with the fabric to safely destroy odors. Smooth, quiet interlock fabric wicks sweat away from the skin to keep you cool, dry, and comfortable. The moldable bill and rear adjuster combine to provide a secure, customized fit. 100% polyester. Imported. One size fits most.