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3M™ Thinsulate™
3M™ Thinsulate™ Insulation offers almost one-and-one-half times the warmth of down‚ and up to twice the warmth of other high-loft insulation materials. Unique microfibres work by trapping air between you and the outside. The more air a material traps in a given space, the better it helps regulate the inside temperature of the footwear.
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