Insect Shield(R) Breathable Mesh Dog Tank Top Insect Shield Mesh Tanks offer dogs effective protection against ticks, mosquitoes, and other biting insects. The active ingredient in Insect Shield is permethrin. The formula used is tightly bound to fabric fibers and offers effective, odorless, built-in insect protection. This sporty design tank mirrors the growing trend in human's outdoor and active apparel, and is made of a flexible, breathable, machine-washable fabric that will not irritate your dog's skin. Features: EPA Registered Lightweight material is great for warm weather Racerback tank style comes in two colors, with contrasting slate mesh side panels Expected garment life cycle is 25 washings Insect protection in fabric and not on the skin Offers year-round protection Repels harmful biting insects Item Specifications: Sizing: See attached Sizing Chart Material: 100% Polyester Care: Machine wash in cold water on gently cycle and line dry. Apparel treated with Insect Shield can be machine washed approximately 25 times. Do not re-treat with other permethrin insect repellant products.