Clamshell design with 6-liter capacity and zippered mesh dividers organizes headlamps and tools in your pack or clothing in your duffel; made with 100% recycled body fabric, lining and webbing. Fair Trade Certified™ sewn. Patagonia Black Hole Cube - Medium Features & Specifications: Extremely Durable, Weather-Resistant, 100% Recycled Fabric: Burly recycled polyester ripstop with a highly weather-resistant TPU-film laminate Divided Main Compartment: Main compartment is divided equally with zippered mesh pockets External Daisy Chain: Exterior daisy chain for lashing onto packs or clipping into duffel bags Grab Handle: Large grab handle Corrosion-Resistant Zipper Sliders: Plastic zipper sliders for corrosion resistance in saltwater applications Cube Volume: Cube volume is 6 liters