Durable water repellent, or DWR, is a coating added
to fabrics at the factory to make them water-resistant or
hydrophobic. Durable water repellents are commonly used in
conjunction with waterproof breathable fabrics such as Our
TaroTex membrane to prevent the outer layer of fabric from
becoming saturated with water. This saturation, called 'wetting
out,' can reduce the garment's breathability moisture transport
through the breathable membrane and let water through.
What is breathability
Breathability is defined as the ability of a fabric to allow perspiration,
evaporated by the body, to escape to the outside termed moisture
vapour transmission, there by allowing complete comfort. A
breathable garment will allow moisture to escape through
the membrane. It reduces peaks and troughs in body temperature
and keeps you dry and comfortable for longer period.