The 100mm System All in One Case from NiSi is made of a polyurethane leather, and the case has a top lid closure. The case accommodates eight 100 x 100 or 100 x 150mm filters along with a V5/V5 Pro Holder, circular polarizer, and three adapter rings. This strong and durable case can be worn over the shoulder with the included strap or on your waist via the belt loop. Key Features  Holds Eight Filters Inside Slots  Fits 100 x 100 or 100 x 150mm Inside  Fits V5/ V5 Pro Holder and CPL Filter  Accommodates Three Adapter Rings