Neoprene Hood Hat Micro 2.5 - Black• Protects lens and shade against dust moisture and impact• Cylindrical design for better fit• Neoprene stretches for a custom fit on round or elliptical shades• Available in eleven sizes to fit a wide variety of lenses• 5cm-6.3cm x 3.8cm (2–2.5 ? x 1.5 L)The neoprene Hood Hat slides over the sunshade to protect the lens from dust moisture and impact. Its tapered cylindrical design makes it easy put on or take off.