Three in One Organize your gear efficiently with the black Ultralight Packing Cube Bundle from Peak Design. These lightweight packing cubes feature a minimalist design and durable, weatherproof zippered closures. Carry loops allow for the attachment of an optional strap, converting the cubes into standalone sling bags. Strap pass-throughs enable seamless connection to other Peak Design bags, making travel hassle-free. Additionally, the cubes fold flat or roll up for convenient storage. Construction Available in three sizes—XX-Small (0.8L), X-Small (2.5L), and Small (10L)—the Peak Design Ultralight Packing Cubes are made from durable, weatherproof proprietary Terra Shell 50D material. Featuring a weatherproof #5 UltraZip with proprietary abrasion-resistant thread, these cubes are built to withstand decades of use. They are 100% recycled, Bluesign-approved, PFAS-free, Fair Trade Certified, and 100% carbon neutral. The cubes can convert to ultralight sling bags by attaching an optional strap to Cord Hook external loops, which also serve as counter pulls for easy opening and closing. With two strap pass-throughs for external mounting to Peak Design bags, the cubes fold flat or roll up for storage, and the elastic zip pull doubles as a cinch ring.