The finest in flexibility, this breathable, moisture-resistant insulation is specially designed to expand and contract in four directions, thereby helping secure warmth and comfort in any position. Fill weight of Arc'teryx Thorium Parka ( Women's) is 209 grams. Its fill power is 750 cubic inches per ounce, which equals to a total of 5529 cubic inches of down fill volume. It's also reinforced with 80 + 140 g/m² of Coreloft. As explained earlier, fill power and fill weight are the two most important factors when it comes to warmth. Arc'teryx Atom Heavyweight (aka AR) ( Men's - Women's) is equipped with 120 g/m2 + 80 g/m2 + 60 g/m2 of Coreloft Continuous. And second, in colder weather, it becomes much harder to warm your legs and feet than your torso and arms.

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The other type of insulation they manufacture is PrimaLoft Bio. It is made from 100% recycled content and it is biodegradable, which is absolutely insane for synthetic insulation. In about two years it degrades by more than 90%, while standard polyester pretty much remains intact that entire time. Arc'teryx Proton (aka LT) ( Men's - Women's) is equipped with 80 g/m2 + 60 g/m2 of Coreloft Compact. Additionally, P.U.R.E. is just a better and more eco-friendly version of PrimaLoft Gold, which used to be their best and warmest type of synthetic insulation. Fill weight of Rab Electron Pro ( Men's - Women's) is 180 grams. Its fill power is 800 cubic inches per ounce, which equals to a total of 5079 cubic inches of down fill volume.There’s an error in your math in the example of Eos versus Transcendent. 141 x 700 is over 98000, much more than what you state, and more than Eos. Insulation: 80g PrimaLoft Gold Active (45% recycled content) / 80g Polartec Alpha (55% recycled content) / shell: 20D stretch ripstop polyamide shell / available in S-XXL.

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Awesome work! Reading this all the way in South Africa. We basically buy one brand nationwide. This helped quite a lot with figuring out what I need. You’re soo technical. It’s inspiring Hi, I was just wondering if/when you may be able to include the new Patagonia DAS Light Hoody and the re-released Patagonia DAS Parka on the charts above..?

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But if you are comparing just regular Thinsulate and the new and improved PrimaLoft insulation, there’s really not that much of a difference. The main benefit of Thinsulate is that there is an option of synthetic insulation that offers better performance in wet weather, but ultimately it’s up to manufacturers whether or not they’re going to put it in their gear. Developed exclusively for bedding, Type Z is a puffy insulation that uses highly siliconized fibers to deliver a soft, luxurious feel. What a great review, so much research..thank you. whilst this lists the minimum temperature the parkas are rated for what is the maximum temperature. Would a 650 rating be good for 5 – 15 degrees Celcius for example Synthetic insulation avoids the main weakness of down insulation by remaining functional and warm when wet. When caught unaware by stormy weather, synthetic insulation will not lose its loft, as opposed to down, which will clump up and lose a lot of its insulating properties.