Big Agnes Insulated Air Core Ultra

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R-rating 4.0 - 5.9

Quick overview

The adventure-ready Big Agnes Air Core Ultra is a smooth and stable sleeping surface for wherever you setup camp. With an easy and fast inflate/deflate valve, tough exterior nylon shell, this warm-weather pad is light and packable. The Air Core Ultra has been completely redesigned from the inside out, its R-Value rated by a third party. Save your breath for hauling the rest of your gear and use the included upcycled pad inflation sack to inflate.


Big Agnes Insulated Air Core Ultra  Small Regular Regular-Wide Large-Wide Double-Wide
R-value 4.5 4.5 4.5 4.5 4.5
Thickness (cm) 8/ 9 8/ 9 8/ 9 8/ 9 8/ 9
Width (cm) 51 51 64 64 127
Length (cm) 168 183 183 198 198
Weight (grams) 558 624 794 879 1.70kg
Inflation type Pad Inflation Sack
Insulation material Synthetic: THERMOLITE® Insulation with reflective heat barrier
Packed dimension (cm) 10x19 10x20 10x22 10x22 17x38
Intended use   Trekking; Camping adventures 

Durable nylon fabric
Proprietary I-Beam construction reduces weight and provides consistent stability and comfort.

Built-in advanced heat reflective technology
Aviation grade TPU lamination technology for weld strength and ultimate dependability.


  • R-Value: 1.4
  • 8cm/ 3.25” thick pad with 9cm/ 3.50” larger outer chambers keep you comfortably cradled in the middle of the pad
  • High volume valves with micro adjustments make for fast inflation/deflation and easy fine tuning to your preferred firmness
  • Antimicrobial treatment inside the pad prevents microorganism growth
  • Protective storage sack, replacement valve seal and 3M repair patches included
  • Individually inflated and tested at our factory ensuring 100% quality performance
  • Pad Inflation Sack made from upcycled excess pad material included. (Color will vary depending on excess material)
  • When sleeping on frozen ground or snow Big Agnes recommend adding a closed cell foam pad