The Warm Company

Insul-BrightThe Warm Company is pleased to present Insul-Bright, a needle-punched, insulating material ideal for crafters. With today’s focus shifting back to family and home, new and experienced sewers are choosing simple, practical projects for use in their homes or as gifts. Pot holders, oven mitts, and casserole covers are all very popular projects made functional and safe with Insul-Bright

Buy Online Now           Find a Store           Product Reviews

 Insul-Bright consists of hollow, polyester fibers needle-punched through a nonwoven substrate and through a reflective metalized poly film. The needled material is breathable and won’t break down with washing. The hollow fibers resist conduction while the reflective metalized poly film resists radiant energy. The energy, hot or cold, is reflected back to its source.
  • Needlepunched Insulated Lining
  • Reflects Heat or Cold Back to the Source
  • No Pre-wash Necessary
  • Machine Wash and Dry
  • Made in the U.S.A.

**IMPORTANT: At least one layer of cotton batting is recommended with Insul-Bright when used as Oven Mitts or Pot Holders. Insul~Bright is heat-RESISTANT, NOT heat-proof.


For more discussion, please see the following links:
Insul Bright Oven Mitt Project Sheet (English)
Insul Bright Oven Mitt Project Sheet (French)
Insul Bright Oven Mitt Project Sheet (Spanish)


  • Pot Holders
  • Iron Cozy
  • Table Pads
  • Casserole Cozy
  • Oven Mitts
  • Insulated Soft Lunch Carriers
  • Baby Warmers
  • Ironing Board Covers
  • Water Heater
  • Cover Tea Cozy
  • Outdoor Stadium Cushions


Look for the Handy Heart Potholder pattern, made with Insul-Bright and Warm & Natural at your local quilt store.

by Eva Holen

Insul-Bright is available in 22" and 45" widths by the yard and in 1 yd x 45" cut sizes

I am going to us Insul-Bright to cover boards to use as small ironing mats for my embroidery hoops. Will cover with pretty material.

I made a blanket. And it's very warm with one layer of Duck , then Isul-bright and then the microfiber for against the skin, the Duck is for durability for an outside blanket and keeps pet hair off it. :)

I used this to make covers for the kids car seats. We live in Arizona, the inside of the car gets reeeeally hot!!! I have tried everything from blankets to insulated curtains to cover the kids car seats, to avoid the crying, "It's too hot". The buckles actually can burn your skin! Finally I made these covers with pockets to slip ice packs into and velcro shut. I can't believe it took me so long to figure this out. Works great! Now we hear, "Oooh, it's cold!"

please can you tell me if your product complies with CE regulations in the UK?


Has anyone ever used this for window blinds or curtains, to help reflect the sun back, and keep a room cooler?

 -Thank you for your post! To answer your question, it does insulate in both aspects of hot and cold. The Insul products reflect the temperature from outside out and keeps temperature inside your home in, whether it is hot or cold. Let us know if you have any other questions or concerns!


I'm making a sleeping bag and it's turing out pretty well.But should I use 1 layer of insul-bright or 2 or 3?I'm also adding a layer of poly batting and am wondering if 1 layer of insul-bright and a layer of poly batting should be warm enough for the winter.

-Thank you for your post! One layer of poly batting and one of Insul-Bright should be enough. It all would depend on the temperature, but if you want your sleeping bag to be the warmest, I suggest using the cotton batting because cotton holds more heat. 

If you'd like to discuss this further you can reach us toll free at the number below: 


omg i was desperately thinking of a solution on how to get rid permanently of the disgusting molds inside our closets in the bedroom. browsed for 2 days till i saw this material at joanns. rushed to the store & bought 8 yards to try out. i cleaned the wall with baking soda then i stapled the fabric on the wall & PRESTO!! been 4 days now soooo cold & the wall is dry. it's even warm inside the closet unlike before. finally no more molds & no need to use heater! thank GOD for this fabric & Warm Company!!!

Want to use in placemats on a finished wooden table ...will the insulbrite protect the table finish and what side should be facing the table... i lost the instructions..can someone help.......thanks

Marilyn Krzus
I'd like to use this in coffee sleeves. Questions: should I turn one side or the other toward the coffee cup? If I add batting, should it go between the cup and the Insul-Bright--or should the batting go between the Insul-Bright and outer layer of fabric (farthest from the coffee cup)? Thank you. Marilyn

Emily Schaefer
love the stuff for potholders etc. but wish it was not necessary to also use cotton batting, kind of bulky. Any prospect of increasing the thickness in the future so that this would not be needed? Also sure wish there was an Insulbrite that was safe for the microwave. Thinking the microwave "bowls" I have seen on a blog.

I received as a door prize from my quilting guild and have only made pot holders. Cuts easily and sews up well.

I purchased several yards to \"sandwich\" between two layers of polar fleece for a wheel chair poncho for my daughter. Has anyone used insul-bright in this manner or for a lining for clothing? Wondering how warm could it be, I live in WNY.

After purchading my Insul Bright I found that it stuck together and cannot work apart. I don\'t if it was purchased that way or what did I do wrong. Can it be separated without changing the intigrity of the fabric?

Nancy Crenshaw
I have used Insul Bright in my mitts and potholders for a couple of years now, just one layer without batting, and have had no trouble or complaints of too much heat passing through. I don't know why the extra layer of regular batting is recommended as it just makes for a bulky product - not necessary! Great ideas, Greg. I'm going to try one or two of them.

So far I've only used Insul Bright for pot holders but after reading others comments I have many more ideas. Great product!

I am using Insul~Bright in ironing board covers I am making. I layer the backing, Insul~Bright, a layer of flannel and then the quilted cover. It makes a very nice padded cover. Easy to sew through.

would like it more with more info... to what temperatures is this product useful in preventinting burn or freeze, to what durraation of touch, and what thickness of cotton batting is reccomended to use with it? thanks.

There is only one Mylar film. It is clear. Many manufacturers apply the mirror coating to make metalized mylar. The coating can be applied to one or both sides of the mylar film. From all appearances this stuff is coated on both sides. That would be useful to any firm which was doing pattern cuttings and aiming for the best utilization of the film.

One side is obviously batting and the other side is the shiny side - the one with the metallic look to it. I thought it was pretty easy to figure out. I don't like having to use a second layer of batting - double the cost and bulk.

I love this product but think there should be something on the package telling us what the quilting requirements are. For those of us that are a little more creative than simple pot holders we need to know these things.

Eileen I just scraped the fuzz off a corner to find the shiny side. I have several projects : a sleeping bag pad, hammock under-quilt, anorak liner, tea cozzy from scrap. I'm looking to stay warm but body moisture to pass through. The big test will be this spring while making maple syrup, snowshoeing on 3-4 feet of snow staying warm but not wet.

Purchased several yards of Insul Bright to make thermal window shades, pairing it with blackout window shade material inside of a heavy drapery fabric sleeve for the shade. It cuts and sews easily, without dulling scissors or breaking needles. Works very well for blocking cold in winter, or heat in summer! Used scraps since then in making warm, but light costumes with quilted wings and neckpieces. Washes well with no apparent loss of insulating ability.

Add a Review!

    Check to receive future offers and mailings.

Please enter the text in the image exactly as it appears in the box