Polartec® Alpha Direct 4004
$29.00 /yd
/ydPolartec® Alpha Direct 4004
$29.00 /yd
/yd740 yards in stock


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Polartec Alpha Direct is an evolution of the original Alpha insulation that eliminates the need for a backing fabric.
Alpha Direct can be worn directly against the skin or other fabric layers. This increases the breathability, reduces the overall garment weight, and allows for greater creative styling.
When it comes to performance, Alpha Direct has caught the attention of both bigger outdoor clothing companies and ultralight cottage gear makers with things like:
- High weight-to-warmth ratio
- Comfort across a wide range of temperatures
- Extremely fast-drying properties (we've seen it come out of the washer practically dry)
- Incredible ability to breathe
Alpha Direct does NOT have very good wind resistance by itself, but when coupled with a wind or rain jacket, it can also provide an impressive amount of heat retention.
Typical applications include pullovers/jackets (fall, summer, spring), mittens, socks, beanies, and other lightweight apparel. Polartec code 4004, 78% recycled polyester content.
*Alpha Direct 4004 is a lighter, thinner version of Alpha Direct 4008.
Sold by the linear yard. For example, enter a qty of "2" to receive two linear yards of fabric. *IMPORTANT* Up to 10 yds guaranteed continuous cut. Any orders above 10 yards will be split.
- Product Details
Color Black Width 59" (149.86 CM) Weight 2.5 oz/yd 2 (84.76 g/m 2) Tapeable No Bondable No Thread/Needle Recommendations: Serger Highly Recommended, Thread: Tera 80 / Tex 35, Mara 70 /Tex 40
Needle: (Universal) 80/12, 90/14Finish/Coating Alpha Direct Dyed Solid OutdoorINK N/A (1) Actual material properties will vary. Values listed represent average values or estimates.
(2) Disclaimer - All information, data, recommendations, etc provided for Ripstop by the Roll products (the Information) is produced for reference only. Ripstop by the Roll assumes no liability arising from (i) the application, processing, or use made of the Information or products; (ii) infringement of the intellectual or industrial property rights of third parties by reason of the application, processing, or use of the Information or products by the Buyer. Buyer shall (i) assume such liability; and (ii) verify the information and the products.
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SAMPLES - Trouble deciding or want to see the fabric first hand? Head over to our samples page to order a custom sample pack.
I made a blanket using Alpha Direct 4004 with 1.1 oz ripstop nylon.
It's very warm and lightweight.
Worm, breathable , and very lightweight.
Thanks Tetsuya! Polartec Alpha Direct 4004 is a great apparel fabric with many different uses. It also comes custom printed now! So you can put any design you want on it and make a truly unique blanket or anything else! We hope you get a lot of use out of your Ultralight Blanket for many seasons.
Was very pleased with the product. 2 yards was plenty for me to design and make a hoodie, shawl and beanie. All very warm and extremely lightweight. The hoodie weighs in at < 4 oz. The shawl is multi purpose as I also use it as a lap blanket or sleeping bag blanket on colder nights.
Thanks Deb! Polartec Alpha Direct 4004 is an absolutely awesome apparel fabric. Its excellent as an insulating layer and for beanies, mittens, shawls. We also now provide custom printing on it so you can put any design you want onto your next hoodie! Thanks again for the review and we would love to see your projects if you are willing to share with us on Instagram.
Polartec® Alpha Direct 4004
Thanks for the review Ian! Let us know if we can help with anything in the future.
I used Alpha Direct to sew a hoodie, based on LearnMYOG's design. I used the hoodie as my insulation layer during a week of skiing in Utah recently and I am really impressed. By varying the base layer I wore and the amount of venting of my shell, I was able to handle temps everywhere from single digits to mid-30s.
Durability seems great and it is very sewable, even with my regular sewing machine (no serger) and below average sewing skills. I used foldover elastic for binding, which worked well. I'm excited to make more projects with Alpha Direct and hoping that RbTR will make many more colors available.
We love to hear that Benjamin! Polartec Alpha Direct 4004 is so breathable while still keeping you cozy and warm! We're glad it worked well for your ski trip!




























