Van Rysel Women's 900, Ultralight Reflective Rain Cycling Jacket in Black, Size Large

Waterproofing is a fabric's ability to prevent rain water from passing through. A fabric's waterproofing is determined by measuring its resistance to the pressure exerted by a water column, measured in mm (test based on ISO 811 standard). The higher the pressure, the more waterproof the fabric. A material with a waterproof rating of 2000mm resists the pressure exerted by 2000mm of water (which roughly corresponds to a 2-hour rain shower). | Van Rysel Women's 900, Ultralight Reflective Rain Cycling Jacket in Black, Size Large