Buy Primaloft Insulation
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PrimaLoft has spent over 40 years developing innovative insulations and fabrics to keep you warm, dry and comfortable. We like to consider ourselves the secret ingredient that powers your favorite jackets, gloves, footwear, bedding and more.
Past customer feedback suggests many customers using 2 layers of 3 oz feel it is good to approximately 35 degrees Note: additional shipping charges may apply due to bulk of packaging. ROLL SIZE = 45 YDSNOTE: Additional shipping charge may apply due to the package size. If you purchase more than 4 yds of insulation we will email you a shipping quote before we ship your order due to oversize packaging 1-15 YDS 15 YDS-ROLL SZ ROLL SZ #1417 3 oz. 60\" $15.95 yd $15.75 yd call Colors: white Qty: White
PrimaLoft Gold offers the highest warmth to weight ratio of all PrimaLoft styles of insulation. This batting style of insulation features microfibers that trap body heat, maintain breathability, and repel water providing thermal insulation even when wet. The short microfibers in PrimaLoft Gold make it the softest and most packable style of PrimaLoft. These short fibers require quilting for long term stability as well as a down-proof lining and outer fabric. PrimaLoft recommends quilting the 100 gsm and 200 gsm styles at an interval of 6 inches.
Prima Loft Gold Active, on the other hand, does not require quilting as the elastic fibers within the batting provide stability as well as some stretch/ease. We stock PrimaLoft Gold in 200 gsm, 100 gsm and Gold Active in 80 gsm. Active is intended for use in a garment requiring a little give or ease. The choice between 100 and 200 is a personal one and depends on level of activity and your personal metabolism. Gold 200 is a denser insulation and therefore will trap more body heat than Gold 100. PrimaLoft does not offer temperature ratings for their insulations as there are too many factors outside of the insulation itself, that can affect the warmth of a garment.
Down, or the fluffy undercoating that keeps ducks, geese, and other water birds warm, is a perfect natural insulator thanks to the thousands of tiny air pockets they use to keep warmth in. No synthetic insulation will be able to complete with its warmth-to-weight ratio, so if staying toasty is your main concern, down insulation is for you. In addition, down is incredibly long lasting, compressible, and lightweight, making it perfect for travel situations where you might find yourself shoving your down vest into your carry-on once you reach the airport.
The first thing to consider when purchasing a new jacket is whether you want synthetic insulation or goose down. The answer should mostly depend on your intended use. Good quality down is warmer for its weight than any synthetic insulation and much more compressible. However, down's weak point is a complete loss of loft (and therefore warmth) when it gets wet. Insulation made of synthetic fibers maintains much of its insulating ability when wet, continues to keep you warm, and dries much more quickly.
Good quality down will maintain its loft and warmth over time better than synthetic insulation. Goose down can withstand decades of being stuffed in your pack. In addition to being less compressible than down, synthetic insulation will eventually lose its ability to fully rebound from being compressed, meaning that it won't be as warm. The synthetic fiber matrix just isn't as durable as Mother Nature's goose down, but as new materials become available, synthetics are closing the gap, while remaining more affordable than high-quality down.
Synthetic insulation is the obvious choice for jackets used as a mid-layer under a shell. Even the most breathable shells create a more humid environment next to your body than outside, and your mid-layers should both retain their insulating properties when damp with sweat and be quick and simple to dry. Not only does down lose its loft very easily when damp, but it also loses loft (and thus warmth) when squished between a hardshell and your body; this is another reason to opt for synthetic over down. Additionally, synthetic insulation's ability to dry quickly, because the fibers themselves haven't absorbed water, makes all the difference. A half-hour in the sunshine will often completely dry a soggy synthetic jacket like the Patagonia Nano Puff Hoody, while a goose down jacket will remain damp and lumpy.
Innovations in both synthetic and down insulation are making their way onto the market every year. Each of these innovations attempts to capture the advantages of competing insulation. On the other end of the spectrum, manufacturers have also been experimenting with increasing goose down's resistance to water. This is certainly the long-sought-after holy grail of down technology. Patagonia, Mountain Hardwear, and Rab have introduced down coats with hydrophobic down, meaning that the feathers have been treated to make them resistant to water. Down's inability to perform when damp or wet is its primary disadvantage, and improving its water resistance would be a game-changing development. The jury is still out on how effective these treatments are performance-wise.
The jackets we tested in this review utilize no fewer than seven types of synthetic insulating fibers. These fibers are mainly polyester - some are super thin and some relatively thicker. Combining multiple thicknesses and lengths of fiber in varying percentages is a popular strategy. Most of these options utilize many short fibers added together to form a dense mat. These dense mats, or batts, are then sandwiched between outer and inner fabrics. To keep the insulation in place, it is either sewn to the outer fabric or the inner fabric - sometimes both.
Comparing the loft and resultant warmth of synthetic insulation can be quite difficult. Our real-world testing in cool to cold conditions proved that some types of insulation, like Primaloft Gold and Fullrange, are warmer than others in practice. The grams per square meter measurement simply states the weight of the insulation used (irrespective of loft and warmth). For example, we found that 60 g/m2 PrimaLoft Gold delivers more loft and warmth than 60 g/m2 Arc'teryx's Coreloft.
PrimaLoft is the most common synthetic insulation used among the products in our review. Developed in the mid-80s in response to the US military's request for a down alternative that would remain warm when wet, its varieties continue to expand and improve.
Primaloft Gold is widely considered to be the industry best when it comes to synthetic insulation and the standard in terms of warmth-to-weight ratio. Previously known as PrimaLoft ONE, it is made with extremely thin individual fibers and provides insulation by capturing body heat in the countless tiny air pockets that exist between these fibers. The thinness of the fibers allows not only for more trapped air in a given amount of insulation but also allows for relatively good compressibility.
Primaloft Silver Hi-Loft 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. It is very warm, but not quite as warm as PrimaLoft Gold. The Arc'teryx Proton LT Hoody uses a breathable variant called Coreloft Continuous.
Rab Stratus is the new proprietary insulation used in the Xenon hoody. Rab claims that it absorbs and retains 20% less moisture than the PrimaLoft that used to be in the Xenon, and is also made entirely of recycled materials.
Polartec Alpha is another relatively new insulation on the market. Polartec Alpha, like FullRange, is a more breathable insulation capable of handling a larger temperature range. This insulation is unique, as the fibers are knitted into a sheet.
The North Face Ventrix insulation uses slits cut into the synthetic fibers that are designed to open up when under movement tension created by aerobic activity. When the slits open, they are far more effective at rapidly dumping excess heat and humidity, making this fiber ideal for active aerobic pursuits.
Along the warmth continuum, there are thin pieces built with 40 g/m2 insulating fibers and models with upwards of 200 g/m2 insulation in the torso. Also, some designs focus on breathability and comfort for high energy activities, while others focus on maximizing warmth and weather resistance. In this section, we detail the types of jackets available by lumping them into three groups.
Lightweight jackets that use traditional synthetic insulation and shell fabrics don't usually breathe well, but hybrids add thin, stretchy, and breathable fabric in critical areas. The jackets in this category have features that focus on wind resistance in some areas while promoting breathability in others. The Arc'teryx Atom LT incorporates breathable panels under the arms, and insulated, wind-resistant construction on the chest and back. We find this style of construction comfortable and versatile for various activities. The low bulk under the arms is comfortable and increases mobility. When worn as an outer layer, these jackets dump heat and moisture from the breathable panels while protecting your core from cold.
After you've determined that you most certainly want a synthetic insulated jacket instead of down insulation, we recommend narrowing down the potential selection by asking yourself the following questions. Your answers will help determine what sort of jacket will be best for you.
To determine how much insulation and warmth you need, first consider what kind of weather you usually play in and what your typical layering system usually looks like. Most folks, whether hiking, backpacking, skiing, or alpine climbing, will pair one of the light or medium insulated jackets with a hardshell or rain jacket for cold weather. Imagine you'r