Ultralight Packing Cubes - Super Packer 5pc Set OrangeYellow. Thereâs a lot that didnât go into these Ultralight Packing Cubes â like as much weight and bulk as possible. Start with crazy strong lightweight siliconized Cordura® Nylon, add a new ultra-light zipper from YKK®, color-matched easy-to-grab corded zipper pulls that donât sacrifice ease-of-use, and a full mesh top panel for complete visibility and ventilation. Lastly, we invented a totally new patent-pending spring-loaded mini framed design that holds its shape while youâre filling them up with all of your life essentials. Itâs time to get packing!