The LensCoat Travel Hood is a lightweight alternative or replacement to the rigid lens hood that comes with your lens. Its ribbed design allows it to fold nearly flat to easily store in your gear bag or suitcase, making this hood your perfect long lens companion. Made with lightweight water resistant material, the LensCoat Travel Hood deflects stray light to prevent glare and lens flare. The LensCoat Travel Hood also helps to protect the lens from scratches and the elements like rain and dust. No Hardware Required - The Travel Hood goes on quickly and easily, the heavy duty Velcro and "no slip grip" Material keeps the Travel Hood in place. Its overall light weight makes your lens easier to handle in the field, packaging, or during transport. The LensCoat Travel Hood is available in Black, Realtree Max4, Realtree Max5, Digital Camo, Forest Green Camo, and Realtree AP Snow to match your LensCoat lens cover. As with all LensCoat products, the Travel Hood is proudly made in the USA. Designed for lenses like Nikon 200-500, 80-400 Sigma 50-500, 120-400, 120-300os, 120-300 sport, 150-600 Contemporary & sport, Tamron 150-600 VC & G2. On some lenses vignetting at the wider focal lengths may occur LensCoat Sigma 100-400mm f/5-6. 3 DG OS HSM Contemporary lens cover offers your valuable equipment some protection from scrapes and bumps, preserving its resale value. It also helps break Up the shape of your lens, making it less noticeable to wildlife. The LensCoat Sigma 100-400mm f/5-6. 3 DG OS HSM Contemporary features a clear plastic Windows over the auto focus controls and also the distance scale. *This cover comes with an optional piece for the lens is zoomed out to 400mm which can be quickly and easily put on and removed with its Velcro attachment as seen in the picture.