Washing instructions for Sub Zero Factor 2 mid layers are printed on a white silk tag stitched to the back neck. Please follow these instructions carefully as failure to comply with them will make your guarantee void. If you have removed the tag or are unsure of the washing symbol meaning, the full washing instructions can be found below.

  • Machine wash or hand wash in water not exceeding 40°C or 105°F
  • You can use a mild washing detergent but ideally you want to use a mid layer specific washing treatment 
  • Wash dark colours separately, do not bleach, do not use fabric conditioners
  • These mid layers can be spun dry in a washing machine
  • Do not tumble dry. These mid layers will quickly dry on a line or airer as they retain very little water once spun/rung out. 
  • Do not dry clean
  • Regular ironing may be performed at a low setting (110°C, 230°F) only, but we advise against it.


Due to the construction of the Factor 2 fabric, it may be susceptible to pilling on areas of the garment that witness excess rubbing - inside thighs, armpits etc. It may also occur if Velcro or unguarded zips come in to contact with the fabric. Pilling is the formation of small lint beads caused by the rubbing of the fabric by external pressure. They do not affect the performance of the garment. Please do not remove these with a lint remover if possible as they protect the fabric from further pilling.   

When you go to wash any garment with a zip, ensure it is done up fully otherwise the exposed teeth may cause harm in the wash cycle. The same can be said for garments containing Velcro. Your best course of action would be to wash these garments either by hand or on their own in a washing machine.

With the advancement in detergent technology, you very rarely need to wash any garments these days above 30°C. It is better to use a specific anti-bacterial wash-in treatment rather than increasing the temperature.

A lot of Sub zero products, especially the base layers and mid layers, can be ironed on a low temperature setting. We would advise against this as the heat settings on irons are not always reliable. In any case, the stretch properties of synthetics helps reduce creases in the wash and if there are any afterwards, they often drop out when worn.

Like most synthetics, Sub Zero fabrics will melt or burn if exposed to flame or direct heat. They are not flame resistant; do not use them near ANY direct source of heat or flame. This includes some of our merino wool products that contain a small percentage of synthetic yarn.

Trade Customers

For over 50 years we have been supplying a wide range of industrial companies with our hard wearing clothing, helping keep their employees warm and dry in all weather conditions.

Our prices are very competitive with outstanding customer service and quick dispatch from our UK factory.

For further information and details on how to open an account with us, please see our trade customer page.


We operate a global network of distributors for our outdoor products. If you are interested in joining our team then please visit our Distributor Page for further details.

UK Retailers

The outdoor industry is very tough at the best of times for retailers. Getting the right products at the right price at the right time is a constant headache.

Here at Sub Zero we like to forge lasting relationships with our retail partners. We have products we know people want to buy and will help you reach out to them.

For further information please visit our Retailers page.


Throughout our 50+ years of trading we have supplied numerous expeditions throughout the world. Our products have been tried and tested from the ravages of Arctic/Antarctic winters to the searing temperatures of the Nevada dessert. Our experienced sales team will be able to help you with all aspects of your expedition gear list. Please contact them through the Expeditions Page.

Emergency Services & Military

We have a long history of working in partnership with UK, European and other military services around the globe. Our knowledge and experience in cold weather clothing is essential for winter deployment.

In the UK, we supply many emergency services groups with our gear, whether that be issue kit under a contract process, or direct through smaller group budgets.

Please visit our Emergency Services & Military page for further details.