The Easycover Lens Cover for Tamron 100-400mm f/4.5-6.3 Di VC USD Lens offers high-quality protection for your lens while maintaining easy access to all the necessary buttons, ports, and functions. The cover is made from flexible silicone, which provides a comfortable, non-slip grip and ensures the lens is protected from dust, dirt, moisture, and light bumps. The Forrest Camo design adds a unique, rugged look, making it ideal for outdoor and wildlife photographers. The cover is easy to put on and remove, and it doesn't interfere with lens performance, allowing you to focus on your photography.