Rivers West Antimicrobrial Pet Sheet Casing, 28-Inch by 35-Inch, White AEGIS Creates a powerful barrier against the spread of antibiotic resistant bacteria and controls skin problems caused by bacteriaand fungus Double Velcro strips for easy adjusting on the neck and long strap with a snap to adjust to the dogs body Made in USA Controls skin problems caused by bacteria and fungus with the Aegis Microbe Shield technology. Aegis is EPA registered. Waterproof barrier to protect the home. Bed Bug Proof, Dust Mite Proof and Flea Proof.