Experience Superior Insulation

Traditional hot tub covers often fall short when it comes to retaining heat. Over time, foam covers absorb water, become heavy, and lose their insulating power — leading to higher energy bills.

The patented AIRCAP 1™ hot tub cover has no foam core at all. Engineered with our AirLoc™ heat-welded drop-stitch technology, it insulates with sealed, still air that has nothing to soak up, so it doesn't lose insulation the way a waterlogged foam cover does.

• Drop-stitch construction: unlike foam, our high-pressure woven core resists waterlogging and maintains its insulating properties for years.
• All-weather performance: our AirLoc™ airtight design keeps the air core sealed, so rain and steam have no foam to soak into.

• Efficient insulation: less heat escapes, so your hot tub maintains your desired temperature more efficiently — meaning lower costs and more relaxing.
• Consistent warmth: enjoy spontaneous soaks without the frustration of water-temp spikes.

• Lower utility bills: by reducing heat loss, the AIRCAP 1™ can lower your hot tub's energy consumption compared to aging foam covers.
• Long-term value: traditional covers degrade quickly, requiring frequent (and costly) replacements. The AIRCAP 1's™ durable design means fewer replacements and more savings over the life of your spa.

The best way to understand dead air-space insulation is to think of multi-pane windows. Dead air-space insulation is a method of trapping air between two spaces to create insulation. In practice it's difficult to achieve a completely sealed dead air space, which makes it an imperfect insulator — however, we are able to attain a dead air space within the AIRCAP 1™.

How it works

• Air is a great insulator when kept still, similar to the windows in your house.
• Engineered with our AirLoc™ advanced heat-welded drop-stitch technology.

Real-world application

• Dead air-space insulation is often used in double-wall construction.
• It's also used in storm doors and windows, where air is trapped between panes of insulated glass.

Foam covers insulate best when they are new. As the foam takes on moisture, its insulating value drops and its weight climbs — which is why foam covers are typically replaced every 3–5 years. The AIRCAP 1™, designed with a 3″ core, has no foam to take on water, so it doesn't lose insulation the way a waterlogged foam cover does. With proper care it is expected to last 5–10+ years.