Granite Gear Portage Pack Liner 4 Clear 105L. This fits the Superior One and the Traditional #4 as well as our other portage packs. This is 6 MIL Heavy-Duty Plastic. Specifications for Granite Gear Portage Pack Liner 4: Manufacturer: Granite Gear Size: 24 x 12 x 44 in Color: Clear Additional Features: Volume 106 Liters/6500 cubic in Condition: New Last Chance: Yes Package Contents: Granite Gear Portage Pack Liner 4 Granite Gear 429304: Portage Pack Liner 4 Clear 105L