The Easycover Lens Oak Neoprene cover is designed to perfectly fit the Sigma 100-400mm lens, offering a snug, secure fit. The high-quality neoprene material provides soft cushioning, protecting the lens from scratches, dirt, and light bumps during storage or transport. The Green Camouflage pattern ensures the lens blends well in natural environments, making it ideal for outdoor photography in forests, nature reserves, or wildlife settings. The cover is lightweight and flexible, offering easy installation and removal while still providing solid protection for your lens.