The red CL-N101 Soft Lens Case from Nikon is a simple and effective way to guard your lens when it is not in use. The soft case cradles your lens in a touch fastened enclosure protecting it from dust and dirt. It's sized to hold either a Nikkor 10-30mm f/2.5-5.6, 10mm f/2.8 or 10mm f/2.8 lens. The case comes with a handy plastic ring that can be used to attach the case to your belt system. In addition, under the touch fastener is a drawstring that is used to further secure the case. The exterior material is felt-like and a nylon interior fabric is gentle on the fine finish of your lens.