... Neck Tie 1,shell:cotton/polyester. 2, inner crystal for fast cool relief from heat 3, for heat working activities. Cooling Neck ... TieCooling Neck Tie Cooling Head Bandana 1,outer shell 100% cotton 2 ... minutes once soakedLightweight - fully washable - comfortableCan be worn around the neck or tied as a headbandThe outer shell is 100% cotton