The Fourth Element X-Core Vest is their answer to the heated vest but without the wires and batteries. The X-Core Vest is designed to be worn beneath their Arctic or Halo undergarments (or another undersuit) to provide extra thermal protection to the level that, in most cases, an electric vest isn't even needed.

The Fourth Element X-Core Vest Men's works best when worn over a base layer such as the Fourth Element J2 or Xerotherm, but it also is worn next to the skin. The sleeveless design ensures that you maintain complete freedom of movement, and the four-way stretch fabric fits snugly without being restrictive.

The Fourth Element X-Core Vest Men's is made with REPREVE® - a fibre made from recycled post-consumer waste, including used plastic bottles. Plastic is removed from the waste stream and prevented from reaching the ocean. 76% of the fibre composition of X-Core is 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 wastewater is treated to ensure its purity before being released from the factory.

This garment is machine washable to make cleaning easy. It is recommended that you use Fourth Element Sub30 Technical Garment Wash to ensure the garment maintains its thermal and fast-wicking properties. Sub30 is also an environmentally friendly washing solution for technical fabrics.

FEATURES:

• Exceptional warmth
• It contains 76% recycled polyester
• Four-way stretch fabric for a snug fit
• Sleeveless design - complete freedom of movement for valve shutdowns
• Additional thermal layer on chest panel
• Perfect next-to-skin or over a baselayer
• Fast wicking fabric keeps the wearer drier and warmer
• Heavyweight Polartec® Power Stretch®
• Blue Sign® and Oeko-Tex® certified
• Odour resistant
• Machine washable