Factor 1 Plus Mens Long Sleeve Base Layer Tops offer excellent moisture management whilst still keeping you warm, making them some of the best thermals to wear next to your skin.

Please note: These garments are of sub-standard quality. This means that there is a fault that prevents us from selling them as perfects. They will be manufactured complete to the same specifications as a perfect garment. To allow for identification, a corner of the back neck label is cut out. They will be packed in our standard plastic security bag without tags.

The fault in these Factor 1 Plus mens tops will either be a small dirty mark or a fabric pull. We will have tried to clean the mark, but a small shadow may remain, and the pull would have been repaired.

These Sub Zero base layer tops are one of the best lightweight thermal underwear ranges for general outdoor use. The simple design makes them compatible with most sports where you need to keep warm and dry. They cross over in to anything from skiing through to hiking and camping, and can be used in combination with the Sub Zero Factor 2 thermal mid layer range for extra warmth in extreme conditions.

Scroll down the page for further product details, technical information, sizing, shipping and any washing instructions.