The Fourth Element X-Core line is top-of-the-line products that have as much insulating effect as other electrically heated undergarments. Here you get a product that holds and amplifies your own body heat.
Features
Contains 76% recycled polyester
Four-way stretch fabric for good fit
Can be applied directly to the skin or over a base layer
Blue sign and Oeko-Tex certified
Made of 92% polyester (76% recycled) and 8% Elastane.
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