Big Agnes Air Core Sleeping Pad

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The Big Agnes Air Core, which virtually guarantees a comfortable night sleep even on knotted terrain, is built to last, with tough 70D nylon top and bottom panels and a sturdy I-beam construction that eliminates welded seams.

The Air Core includes a non-breakable brass valve and an EZ-Flate mouthpiece. The I-beam design offers several benefits: minimized cold spots, a consistent airflow, and extra stability while you sleep. Should the temperature drop below your comfort zone, you can add a closed cell foam pad to bump up the pad’s coziness.

The Air Core is also a breeze to inflate thanks to the plastic-coated EZ-Flate mouthpiece, which includes a non-breakable brass valve. To inflate, simply twist the black part of the valve counter-clockwise and blow. You can rest assured that the pad won’t leak when you bring it home, as each Air Core is individually inflated and tested. And should you eventually need to patch a leak, you can turn to the repair kit, which is located in a small pocket on the inside of the stuff sack.

The pad, which also includes an internal polyurethane coating, is rated to 35 degrees F and comes in five sizes.


  • Small: 20 by 48 by 2.5 inches, weighs 16 ounces
  • Medium: 20 by 72 by 2.5 inches, weighs 22 ounces
  • Long: 20 by 78 by 2.5 inches, weighs 25 ounces
  • Medium mummy: 20 by 72 by 2.5 inches, weighs 19 ounces
  • Long mummy: 20 by 78 by 2.5 inches, weighs 22 ounces

Big Agnes Pad Technology embraces:

  • I-beam construction eliminates welded seams for quick inflation/deflation, consistent air flow and stability.
  • EZ Flate Valve – Non-breakable brass valve with plastic coated EZ Flate mouthpiece.
  • Die Cut Foam – Diamond shape, die-cut foam core is lighter and more supportive.
  • PrimaLoft Eco combines 50% recycled material with PrimaLoft virgin fibers to create a high loft, thermally efficient insulation.
  • Climashield HL Green – Made from 100% recycled materials. Climashield is a High Loft synthetic insulation made using Climashield’s advanced technology that takes thousands of continuous strands of polyester and spreads them into a naturally interlocking insulation.

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