We’re here to help! Product code: QWH-35. Breathability (MVTR): 20,000g/m²/24 hrs. Hydrostatic head: 20,000mm. Weight: 274g/9.6oz (Size 10). Fit: Regular. 30D Pertex® Shield 3-Layer construction waterproof technology with fluorocarbon free DWR (120gsm) HH: 20,000mm/MVTR: 20,000 g/m2/24hrs.