







Open One Insulator Jacket
Key features of the Open One Insulator Jacket
The cleanest insulator ever made. Innovative stitch-less material, filled with non-animal down, ethically produced.
Out of stock? — Get notified when this product is back in stock.
PFC-free DWR — Keeping you dry
Non-animal — PrimaLoft® Insulation ThermoPlume
Stitchless — Engineered baffles by Toray.
Ethical production — Made in China under fair working conditions.
Packability — Bring in your backpack
Loftiness — Regains full loft, just like down.
Shaped cuffs — Fits perfectly under a shell jacket
Mountain & urban — Wear it all day, everyday
Zippers — Five times YKK quality
Hood — Adjust it with one hand
Pockets — Bring all you need
Powder fit — Slightly longer back drop
Out of stock? — Get notified when this product is back in stock.
Non-animal — PrimaLoft® Insulation ThermoPlume
Ethical production — Made in China under fair working conditions.
Loftiness — Regains full loft, just like down.
Mountain & urban — Wear it all day, everyday
Hood — Adjust it with one hand
Powder fit — Slightly longer back drop
PFC-free DWR — Keeping you dry
Stitchless — Engineered baffles by Toray.
Packability — Bring in your backpack
Shaped cuffs — Fits perfectly under a shell jacket
Zippers — Five times YKK quality
Pockets — Bring all you need
Size Guide
Fill in the three sizes below and find your best fit or use the size table below. Measurements in cm.
How to measure?
Chest – Measure around the fullest part of your chest, place the tape close under the armpits and make sure the tape is flat across the back.
Waist – Measure around your waist. Just above your belly button.
Sleeve length – Measure from the top of your shoulder to the knuckles of your fingers. Alternatively, take a similar jacket and measure the sleeve length from the shoulder to the cuffs.
Measure direct on your body. If you are in-between two sizes, pick the larger size for a more loose fit and the smaller size for a more tight fit.
Why this layer is way cheaper
We cut down the importer fee and the store cost, we are able to sell the same quality for almost half of the price.
Open One Insulator Jacket
Comparable Layer
- 14 days No Questions Asked Refund
- 30 days Return & Exchange*
- 5 years Product guarantee
Jacket specs
Fit
Tight
Normal
Powder
Ergonomic fit. Shaped to perfectly fit under the Open One 3L Shell Jacket.
Warmth
Shell
Mid
Extreme
PrimaLoft® Insulation ThermoPlume warmth equivalent to 550 fill power down.
Waterproofness
Normal
High
Extreme
Wet weather-proof. Water resistant insulation and PFC-free durable water repellency.