PrimaLoft One insulation has been exceptional. But as I have pointed out in previous writings there are differences in the other PrimaLoft insulation values of the differing products. And a wide difference on price as well. Enough so that I typically wouldn't buy anything but PrimaLoft One.
Here are the old definitions:
The human body uses energy to keep warm PrimaLoft uses a patented microfiber structure to help the body retain warmth and conserve energy. PrimaLoft is as warm as down, compressible, breathable and offers superior water repellency so you remain dry, warm and comfortable even under the most extreme conditions. These performance qualities and technical benefits make PrimaLOft the thermal insulation of choice for outerwear and sleeping bags.
Wash/Care Instructions: Machine wash and rinse in cold water, gentle cycle. Tumble dry warm, remove promptly. Do not dry clean, bleach, iron or steam.
|Please keep orders to 1/8 yd increments. Minimum order is 1/2 yd.|
1/8 = 0.125
1/4 = 0.25
3/8 = 0.375
1/2 = 0.5
5/8 = 0.625
3/4 = 0.75
7/8 = 0.875
Comprised of 100% specially treated polyester micro-fibers (1 denier or less). Has the highest col value per weight of all PrimaLoft insulations at 0.084. It has softest hand and is the most compressible of all PrimaLoft insulations and abosorbs 3 times less water, and is 24% warmer than the closest competitive insulation. Available in two weights: 3 oz and 5 oz.
Width: 60" 3 oz Price: $11.95/yd 5 oz Price: $16.95/yd
Comprised of 100% polyester blend micro-fibers (1 denier or less) and fine fibers (>1 denier). Has increased durability and loft due to blend of both micro and fine fibers, along with a little more binder. Col value by wieght is 0.074. Gram for gram PrimaLoft Sport is warmer than any other competitive continuous filament or thin insulation. Available in two weights: 3 oz and 5 oz
Width: 60" 3 oz Price: $9.95/yd 5 oz Price: $14.95/yd
Here are the newest insulations:
The benchmark in performance of all synthetic insulations
Black Insulation Eco
Warmth, softness and lightweight comfort from post-consumer recycled materials
Significant to me is:
Primaloft SILVER Hi-Loft, seen in the Patagonia DAS Parka, is a continuous filament insulation made with fibers of differing thicknesses. Primaloft calls this their loftiest insulation. This insulation is less compressible overall, but more durable in the long run.
Coreloft, Arc'teryx's proprietary insulation, is made of many short, thin fibers, and is used in the Arc'teryx Atom LT Hoody and Arc'teryx Atom AR Hoody. It is very warm, but not quite as warm as PrimaLoft GOLD.
ThermaTek, another proprietary Arc'teryx insulation, is a continuous filament insulation used in some of Arc'teryx's high end products like the Arc'teryx Fission SL, which is more like an insulated ski jacket. Arc'teryx claims it to be warmer relative to weight than Coreloft, but it isn't as compressible.
Montbell UL Thermawrap Jacket warm for its weight. However, it is difficult to compare Exceloft's warmth directly to Primaloft GOLD because the Thermawrap uses 50g/m2 Exceloft insulation, while the Primaloft GOLD used in test models is 60g/m2.
Thermal.Q Elite, a new proprietary insulation from Mountain Hardwear, uses a combination of thicker, longer fibers to form a framework, and short, thinner fibers to fill the gaps in between. Mountain Hardwear claims both better warmth and compressibility for this insulation. Again, it is difficult to compare its warmth directly to Primaloft 60g/m2, as the two products we tested, the Mountain Hardwear Hooded Compressor uses 100g/m2 Thermal.Q Elite. "
Quote above is from this review:
I also found this while looking...
PrimaLoft® Gold Insulation – the highest performing synthetic insulation available. The ultimate in warmth-to-weight available in a synthetic is coupled with incredible packability and softness that mimics goose down, all with excellent water-repellency for wet-weather protection.
PrimaLoft® Silver Insulation utilizes a proprietary water repellent finish to keep you warm when wet. A comfortable loft and feel provides warmth, while super-lightweight properties allow freedom of movement for whatever your day may deliver."
I am not in the market for a synthetic jacket but you might be.
These are the last "real" numbers I can dig up. When I started dissing Sport and Eco for my own climbing it seems names and info changed or became exceptional hard to find. I find that odd.
PrimaLoft's own published data comparing Primaloft One, Sport and Eco below which has been deleted from their web site:
Primaloft One: 0.92 dry / 0.90 wet, clo/oz
Primaloft Sport: 0.79 dry /.72 wet, clo/oz
Primaloft Eco: 0.68 dry/ 0.60 wet, clo/oz