AIRCAP 1: the foam-free replacement hot tub cover.

See how welded drop-stitch construction compares with a traditional foam cover: water, weight, lifespan and care.

• 1

  Never absorbs water

  No foam core to soak up waterTraditional Foam: can take on water over time

  AIRCAP 1™

  Welded drop-stitch fabric with a water-resistant coating seals an air core, so there is no foam inside to absorb water. The cover stays light, and there is no soaked core for mold or mildew to grow in.

  Learn more about water resistance

  Traditional Foam

  Foam covers, even when encased in vinyl, can take on water over time. Punctures, torn seams and wear speed this up. Once the core is wet, foam insulates less and can harbor mold and mildew.

• 2

  Lightweight: 35–40 lb, and it stays that way

  35–40 lb, out of the box and years laterTraditional Foam: gets heavier as the foam takes on water

  AIRCAP 1™

  It weighs 35–40 lb out of the box and stays that weight, because there is nothing inside to soak up water.

  What does your cover weigh now?

  Traditional Foam

  As the foam takes on water, the cover gets heavier and harder to lift. A waterlogged cover can become too heavy for one person to lift comfortably.

• 3

  Expected to last 5–10+ years

  Expected 5–10+ years with proper careTraditional Foam: typically 3–5 years

  AIRCAP 1™

  Welded drop-stitch has no foam core to waterlog, which is why it is built to outlast the foam covers it replaces. It costs more up front than a foam cover: $1,195 in every size, including the pump, three ZipTech™ skirt depths and four keyed locking tie-down straps. With proper care it is expected to last 5–10+ years, against the 3–5 years typical of foam.

  3-year limited warranty

  Traditional Foam

  Foam covers typically need replacing every 3–5 years, sooner once they've taken on water or been damaged.

• 4

  Insulation that stays dry

  Air core traps still air when inflatedTraditional Foam: insulates less once wet

  AIRCAP 1™

  Thousands of vertical threads inside the drop-stitch core trap still air when inflated, which holds heat in. Because the core can't get wet, it can take less energy to hold temperature than a waterlogged foam cover.

  Learn more about insulation

  Traditional Foam

  Foam insulates well when dry, but its insulating value drops as the core takes on water over time, and it can degrade as the material ages or gets damaged.

• 5

  Built to outlast foam

  Welded drop-stitch, the build used in inflatable paddleboardsTraditional Foam: the core can crack and break down

  AIRCAP 1™

  Welded drop-stitch construction resists punctures and tears, with a UV-resistant exterior. Inflated, it holds a firm, flat shape. It's the same drop-stitch construction used in inflatable paddleboards.

  Learn more about durability

  Traditional Foam

  Foam cores can crack and break down over time, losing shape and insulating value. The vinyl exterior can also crack or tear, reducing the cover's effectiveness.

• 6

  Easy to keep clean

  Rinse with a garden hose and mild soapTraditional Foam: can sag and warp over time

  AIRCAP 1™

  Rinse it with a garden hose and mild soap; pressure washing is not recommended. Inflated, it keeps a firm, flat top.

  Read the cleaning guide

  Traditional Foam

  Over time, foam covers can sag and warp as the core breaks down, which shows on the hot tub.

• 7

  Environmental Impact

  Fewer replacements over its lifeTraditional Foam: often not recyclable

  AIRCAP 1™

  An expected 5–10+ year life means fewer covers going to the landfill.

  Learn about our environmental impact

  Traditional Foam

  Worn-out foam covers are often not recyclable, so many end up in the landfill.

5.0 ★ · 9 reviews · In 100+ hot tub showrooms · Questions about fit? Call (425) 331-9047