- Large main compartment with a zipped cover - Breathable polyester mesh for ventilation - Compression straps to keep load close to body - 15 cm x 48 cm x 10 cm / 5 L The Patagonia Black Hole Waist pack is our larger addition to the Mini Travel Hip Pack we carry in our inventory. The name comes from it's huge potential to carry stuff. It features a large zipped main compartment with lots of smaller ones. Patagonia Black Hole Waist Pack 5L Vessel Blue