Comfort Flex Mask has a streamlined fit for a more professional appearance. Includes a convenient travel pouch with clip for quick access on backpack, purse, or belt loop. Made of moisture-wicking polyester with just the right amount of stretch. Available with imprinting on mask or pouch or both. Reusable and washable. Not intended for medical use, for personal protection only. Complies with Prop 65. 2.75" L x 0.25" W x 4.375" H