We us a PFC fee DWR (durable water repellency) finish based on silicone chemistry to support our tightly weaved cotton's natural waterrepellency. The finish can be refreshed by ironing or using a tumble dryer. PFC-free means: no perfluorinated and polyflourinated compounds. That is a group of chemicals that threaten the environment and our health. They can be realeased in the environment both in the production but also while using, washing and disposing the respective products. Once PFC are disposed to the environment they can disperse extensively. Since PFC are man-made chemicals and do not occur naturally, they degrade extremely slowly, if at all. They accumulate via air, water and soil into organisms and ultimately into the food chain.