Product has passed ISO 22196 testing. FDA Compliant - passed tests FDA 21 CFR 177.1520 and FDA 21 CFR 177.1630. Manufactured with an Antimicrobial and/or antibacterial additive which fights bacteria growth on the product’s surface. Neutralizes over 99% of active bacteria on product's surface. Additive doesn't wear off and remains effective for the life of the product. Reduces odor as additive fights odor - casing bacteria. Squeezable material. Bottle made in USA from PE (Polyethelene) Wide mouth, 53 mm opening. Lid is made in USA with a MicroHalt additive. Fits most bike holders. Hand wash only.