The AlphaCool Ice Band is revolutionary in the cooling market because of its Dual Cooling Action (DCA). It&';s a simple concept really... Just freeze it and wear it! What is so cool about the Ice Band is the material it&';s made of allows for you to also use this as a simple cooling wrap by dipping it in cold water. The other option is the phase change inserts which allow for hours of cold. Stays cool for hours! Feels up to 30 Degrees Cooler Measures 2.25" x 32" Made of Micro-Textured Material for Advanced Moisture Retention Reusable & Machine Washable Freeze Ice Insert for an extreme chill Instructions: Place Ice Band in the freezer for 2-3 hours. Remove and wear around head or neck. For an extreme chill, dip in the cold water before use. To recharge, re-freeze or dip into cold water.Material Content:Lining - Polyester & NeopreneIce Inserts - PE, Water & Food ColoringDesigned in the USA