Introducing the "Cooler-in-Cooler," a new concept, this is a slightly larger cooler pack, the 18. It neatly stores six 2L PET bottles and ice packs. Even with a cooler box that is frequently opened and closed, you can keep fresh food cold for a long time by putting it in this cooler pack. The interior is waterproof with sealed seams to prevent leaks. The exterior is not sealed and will absorb water if submerged. The simple roll-down closure allows you to quickly access the contents when needed. It's a perfect fit for the HYAD Cooler 47. ■ Color: BLACK CAMO (Black Camo) ■ Material: 210D POLYESTER (Polyester) *Waterproof interior ■ Country of Origin: MADE IN CHINA (China) ■ Size: (Width 28, Height 32, Depth 22) cm *Effective size when cooling ■ Capacity: 18QT (approx. 17L) ■ Weight: approx. 250g