Outdoor Research Backpkrs Kit Ultra LT Down, Assorted, 1size Fabric Performance: Ultralight, Compressible, Water-Resistant Design Features: 3 Separate Storage Options Provide an Instant Packing System; 10L Ultralight Compression Sack, 10L Ultralight Stuff Sack & Mesh Ditty Functional Details: The Backpackers Kit gives you three storage options in one convenient package. Ultralight Compression Sack included Mesh ditty sack included