Fourth Element X-Core Vest Mens
Fourth Element X-Core Vest Ladies
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Fourth Element X-Core Undergarment

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Designed for use as an undergarment the X-Core provides thermal protection to the same degree that can be provided from heated undergarments. The undergarment will perform at its best when worn over a lightweight base layer such as the J2 or Xerotherm garments however can also be warn directly over the skin. The four way stretch material ensures a snug fit. Whereas the fast wicking fabric enables perspiration to be move to the outer layer of the material ensuring the wearer is kept drier and warmer.

X-Core is made with a number of ocean positive fabrics helping to reduce our footprint on the planet. REPREVE® is a fibre made from recycled waste including plastic bottles. 76% of the fibres used in X-Core are recycled polyester.

The Polartec® fabric used in X-Core is manufactured to the highest environmental standards. It has Blue Sign® and Oeko-Tex® certification to indicate that harmful chemicals are minimised or eliminated and that waste water is treated to ensure its purity before being released from the factory.

The X-Core undergarment is odour resistant and machine washable. To maintain your undergarment in optimal condition we recommend Sub30 Technical Garment Wash.

  • Exceptional thermal protection
  • Four way stretch fabric
  • Ideal when paired with J2 or Xerotherm base layers
  • Fast wicking fabric keeping you dry and warm
  • Odour resistant
  • Machine washable
  • 76% recycled polyester / 16% polyester / 8% elastane
  • Heavyweight Polartec® Power Stretch®
  • Blue Sign® and Oeko-Tex® certified