Both the Triple and Single Holdster are made from quality, heavy grade synthetic leather for durability, and weather resistance. The material is UV treated and tested. Holdsters give you a distinctive storage compartment on the inside of your windshield and they mount directly to National Cycle's Heavy-Duty windshield frames. The Triple Holdster has a main pouch of 11.5"x5"x3" (29.2x12.7x7.6cm) and 2 side pouches of 4.5"x4.5"x3" (11.4x11.4x7.6cm). The Single Holdster measures 11.5"x5"x3" (29.2x12.7x7.6cm).