10,000 mm Water Column & 10,000 g/m2/24 h Breathability with seam-seals
A seam-sealed jacket featuring an outer fabric with a water column rating of 10,000 mm and 10,000 g/m2/24 h Breathability. This jacket will keep you dry in moderate to heavy rain conditions, whilst still providing you with comfort and breathability.
Waterproof ratings are based on a fabrics ability to withstand a water column height (10,000mm) over a 2.5 x 2.5cm area without leaking through. The higher mm the rating, the greater the fabrics ability to prevent water leaking through. Breathability ratings are measured by how much water vapour can be transferred (MVT) through a square meter of fabric in a 24-hour period. The higher the number indicated the more breathable the jacket or fabric will be. Breathability is measured in g/m2/ 24 hours.
A DWR coating is applied to improve the water repellency of the garment. DWR assists by beading water off the fabrics surface, increasing the water-resistance of the jacket.
This breathable and lightweight waterproof fabric is used for selected First Ascent outerwear and activewear garments. Garments which bear a Vapourtex Fabric mark are waterproof, keeping you protected during moderate rain conditions. Look out for seam-sealed garments, these garments will provide you with the highest level of coverage in wet weather conditions.