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Thinsulate™ Insulation for Footwear


Thin, warm, light

What makes Thinsulate™ Insulation so important to a cold-weather boot? Three words: thin, warm, light.

A thin insulation, of course, is crucial in boots for warmth. There is simply no room for anything bulky. And what better place to look for thin than the insulation that started it all: Thinsulate insulation.

The same goes for warmth. Feet, being furthest from your body's center of heat, need insulation more than any other part of your body. With nearly twice the warmth of foam, felt or pile, Thinsulate insulation is just what feet need to stay warm and comfortable.

Which brings up the third big benefit of Thinsulate insulation: It doesn't bog boots down with weight. In fact, it's one of the lightest synthetic insulations on the market.

So durable the warmth keeps springing back

Boots are a unique part of the outdoor wardrobe because of the pounding they take. Each step exerts tremendous pressure on every boot component. This harsh treatment is especially hard on insulation, which can become compacted. And since all insulations work by trapping microscopic pockets of air in their fibers, compacted insulations lose their effectiveness.

The qualities that make Thinsulate™ Insulation ideal for boots are its compression resistance and durability. It can take a beating and still retain those little pockets of air so important for keeping feet warm.

Not even water can dampen its warmth

For years, many outdoor enthusiasts have chosen Thinsulate insulation over foam and felt based on one characteristic alone: its ability to retain warmth when wet. Thinsulate insulation absorbs less than 1% of its weight in water, so it keeps feet warm even in damp conditions.

For the ultimate in cold-weather performance

No one wants their feet to get cold. But for some outdoor enthusiasts, keeping feet warm is a matter of survival. For them, there's Thinsulate™ Ultra Insulation Extreme Performance for Footwear.

In order to display the Thinsulate Ultra insulation extreme performance for footwear hang tag, manufacturers must use at least 400 grams per square meter of Thinsulate insulation. Plus, they must insulate the boots to strict specifications—through the toe, vamp, heel and all the way over the ankle.

When you buy a boot carrying the Thinsulate Ultra insulation extreme performance for footwear hang tag, you know that it will not only contain the warmest insulation on the market, but it will be insulated in the best possible way.

Why do we insist that our insulation be used properly? The biggest reason is shown in the thermograms below. Anyone can put foam insulation into their boots, but don't expect much in the way of performance.

Boot Insulation Picture

The image above is a comparison of heat loss. The boot insulated with foam is losing more body heat than the boot insulated with the Thinsulate™ Ultra Insulation Extreme Performance for Footwear construction. High areas of heat loss are indicated in red and white. Low heat loss is shown in blue and green.

Thinsulate insulation for footwear

200 gram* Thinsulate™ Insulation for Footwear is recommended for cool conditions or for high activity levels where wearer generates/builds a lot of body heat through activity.

  • Work boots
  • Hiking boots
  • Rubber bottom boots
  • Hunting boots
  • Snowboard boots
  • Alpine ski boots
  • Athletic winter boots

400 gram* Thinsulate™ Ultra Insulation for Footwear is recommended for cold conditions or for moderate activity levels where wearer generates/builds a normal amount of body heat through activity.

  • Rubber bottom boots
  • Hiking boots
  • PAC boots
  • Hunting boots
  • Work boots

600 gram* Thinsulate™ Ultra Insulation for Footwear is recommended for very cold conditions or for very light activity levels where wearer generates/builds little body heat through activity.

  • Hiking boots
  • Work boots
  • Hunting boots
  • PAC boots

800 gram* Thinsulate™ Ultra Insulation for Footwear is recommended for extremely cold conditions or for extremely light activity levels where wearer generates/builds minimal body heat through activity.

  • Hunting boots
  • PAC boots
  • Work boots

1,000 gram* Thinsulate™ Ultra Insulation for Footwear is recommended for unique applications requiring additional insulation.

* Grams per square meter of insulation