3M CS150 Thinsulate Thermal Jacket Insulation. 4.6 oz. per yard. 60" wide. $6.99 per yard. The perfect lining for winter jackets, blankets, and other winter specialty clothes. Put a barrier of warmth between you and the elements by adding a layer of Thinsulate as an underlining. Some 25 years ago, Thinsulate insulation was introduced as the original "warmth without bulk" insulation. And it virtually revolutionized the insulation industry overnight.  In fact, when equal thicknesses are compared, it provides about 1-1/2 times the warmth of down and about twice the warmth of other high-loft insulation materials. And because Thinsulate insulation absorbs less than 1% of its weight in water, it retains its insulating ability even in damp conditions. The unique microfibers of Thinsulate insulation are about ten times smaller than the fibers of other synthetic insulations, which means they’re much more efficient at trapping air. . . and more effective at keeping you warm and comfortable. It also means more fibers can be packed into the same space, where they can reflect back more of the body’s radiant heat.