Return to the independent experience of nature with the non-electric cooling system: The Passive Cool Box 25lt Sand has a super-passive cooling system that offers a fully autonomous supply. The insulating layer with a thickness of at least 45 mm allows the sturdy PE body of the Cool Box to keep ice for up to 12 days.

With commercially available ice, cold packs, or dry ice, the Passive Cool Box already achieves a stable low temperature inside. Thus, a long cooling time for food is guaranteed – just when needed outdoors. With a capacity of 25lt, the Cool Box provides enough storage space for cold drinks and food. A great benefit: The interior of the Cool Boxes is designed in such a way that either 1-liter or 1.5-liter bottles can be transported, saving space and in an upright position.

Thanks to the fully integrated handles, it is easy to transport even when fully loaded. Additionally, the sturdy Cool Boxes can be optimally stored thanks to their design and the integrated drainage system that offers easy water drainage. This simplifies ice replenishment during use as well as subsequent cleaning of the interior.

Here are various features at a glance:

• Lid with non-slip surface for elevated stand or seat
• Belt guides for closed transport
• Reinforced locking plates for additional U-lock security
• Non-slip rubber latches (one-hand operation)
• Ergonomic carrying handles with additional attachment points for secure opening/closing during transport
• Non-slip rubber feet for a secure base and air circulation on the underside

Tips for optimal cooling performance:

• Before use, cool the Cool Box in a cold room or with ice
• Store drinks or food in a pre-cooled state
• Preferably choose large ice pieces: The larger the surface area, the shorter the cooling time
• Always place dry ice, cold packs, or ice on top, as the cold sinks downwards
• Limit the opening of the cooling box to achieve optimal cooling performance
• When on the road, store the Cool Box in a cool, shady place and away from direct sunlight
• Store and transport only in an upright position