Sending your mail a long way? Want to make sure it arrives in good condition? Avery Weatherproof Shipping Labels are strong and durable waterproof labels so will stay intact whatever the weather or however they are handled. Smudged address labels look unprofessional and can be difficult for the postal service to read. These shipping labels are water and dirt resistant, tear proof, UV and temperature resistant giving you a weatherproof address label. If you already use a durable envelope it makes sense to use these weatherproof labels.