Jambul Stainless Steel Water Bottle Double Walled Vacuum-Insulated for Hot and Cold Beverages - Wide Mouth - BPA Free, 32 Oz Electro-static polypropylene mesh Polyester media Heavy duty Extruded Aluminum frame Aluminum wire mesh screening Traps 95% of airborne dust and allergens Permanent & Washable - Just hose off and reinstall Made in USA Lifetime warranty