CITYMAIL, a leading provider of mailing services and direct marketing solutions, has announced the availability of a new postcard mailer featuring peel-off vinyl stickers. The weatherproof stickers can be applied to any surface and are easily removed. The stickers can be used to enhance mailings in a variety of ways: Event organizers can mail attendees event information and provide an ID sticker for entrance; companies can add promotional stickers to monthly sales announcements, or the stickers can be used to encourage placement on backpacks, water bottles and other gear to help promote the brand and foster customer loyalty.