Size + Fit
The Aerogel Puffer is designed with a regular fit.
The Aerogel Puffer uses modern technology to recreate the lightweight warmth and comfort of down, while offering better performance in wet conditions. Although down traps heat well, it doesn’t work well in the rain. As soon as the fibres get wet, they clump together and stop insulating almost immediately. The synthetic insulation in the Aerogel Puffer matches down’s thermal properties, while a water repellent finish on the fibres means the jacket will keep insulating even in wet conditions.
Aerogel was invented at Stanford University in the 1930s. Sixty years later it was adopted by the Jet Propulsion Laboratory at NASA, and it’s been travelling to and from space ever since. When the Pathfinder Sojourner Rover landed on Mars in 1997, it was aerogel that was used to insulate the electronics box because of its thermal properties. And on the Stardust spacecraft, it was aerogel they used to collect samples of interstellar dust from a comet that was moving six times faster than a bullet. So it has a decent CV.
You’ll find two large zipped pockets on the side of the jacket that let you comfortably tuck your hands in for warmth. There are two more pockets with zippers on either side of the chest that fit phones, wallets and keys. And there’s a fifth small zipped pocket inside the jacket.
The Aerogel Puffer is designed with a regular fit.
| Size | XS | S | M | L | XL | XXL |
| Fits chest | 83 - 90 | 91 - 98 | 99 - 106 | 107 - 114 | 115 - 122 | 123 - 130 |
| Fits waist | 71 - 76 | 76 - 81 | 81 - 86 | 86 - 91 | 91 - 96 | 96 - 101 |
| Size | XS | S | M | L | XL | XXL |
| Fits chest | 33 - 36 | 36 - 39 | 39 - 42 | 42 - 45 | 45 - 48 | 48 - 51 |
| Fits waist | 28 - 30 | 30 - 32 | 32 - 34 | 34 - 36 | 36 - 38 | 38 - 40 |