WaterCube™ is a unique 2-part container, specially designed for emergency drinking water storage. WaterCube's rugged outer shell protects it from physical damage and ultraviolet light. The outer shell also provides the unique "stackable" shape, and has a retractable carrying handle WaterCube’s inner section is a flexible heavy-gauge polyethylene container made of FDA approved materials. WaterCube™ is a unique 2-part container, specially designed for emergency drinking water storage. WaterCube's rugged outer shell protects it from physical damage and ultraviolet light. The outer shell also provides the unique "stackable" shape, and has a retractable carrying handle WaterCube’s inner section is a flexible heavy-gauge polyethylene container made of FDA approved materials.