The OtterBox Defender Series is a line of rugged phone cases designed by the well-known brand OtterBox. Their cases are known for providing heavy-duty protection for smartphones, with a focus on durability and impact resistance. The Defender Series cases are designed to withstand drops, bumps, and other impacts, making them a popular choice for users who want to keep their devices safe in various environments. The OtterBox brand has a reputation for quality and reliability when it comes to phone protection. For iPhone se 2nd generation, iPhone 8 and iPhone 7.