This is a waterproofing technology with high breathability that uses a polyurethane (PU) layer consisting of a three-component multilayer formula to provide us with waterproofing, moisture permeability (breathability), and durability.
The durable woven exterior repels rain while the inner layer uses the polyurethane coating and micropores to drive water vapor to the outer layer. The end result is a technology that has excellent waterproofing and breathability.
It is also very important that The North Face™ informs us about the durability of the DryVent® membrane by specifying the number of washes for which its permeability duration has been measured.