What is Waterproof and Breathable?

Waterproof and breathable textiles are meticulously engineered to promote the comfort and dryness of the wearer in moist environments. These fabrics are engineered to prevent water from penetrating the garment while still allowing moisture to escape.

This is achieved by using a membrane or coating that has microscopic pores that are too small to allow water droplets to enter, but large enough to allow moisture vapor to escape.

Rain jackets, pants, and hiking boots, among other outdoor clothing and equipment, frequently use waterproof and breathable textiles. These textiles are often produced from synthetic materials like polyester or nylon and may contain a water-resistant membrane or coating such as Gore-Tex or eVent.

The waterproof and breathable capability of these textiles can be measured by a fabric's hydrostatic head rating, which quantifies the amount of pressure necessary to force water through the fabric. The greater the hydrostatic head rating, the more effective the fabric is at repelling water.

Breathability can also be measured by a textile's moisture vapor transmission rate (MVTR), which assesses the quantity of moisture vapor that can pass through the fabric in a specified period. Higher MVTR ratings imply superior breathability.

Waterproof and breathable textiles provide a potent and efficient resolution for staying dry and comfortable when confronting damp environments, facilitating outdoor activities in challenging weather conditions.