Everyday splash protection (e.g., umbrellas/lightweight jackets):
WR + Spray test (ensures initial water repellency)
Short-term outdoor use (e.g., commuter raincoats/hiking jackets):
W/R + Spray test (DWR) + Medium Hydrostatic Head (5K-10K mmH₂O) + Rain test
Extreme environments (e.g., professional hardshell jackets/alpine tents): v WP + High Hydrostatic Head (≥20K mmH₂O) + Spray test (DWR meets the standard after multiple washes) + Rain test (detailed waterproofing) + Breathability/Water Vapor Permeability
Quick-drying products (e.g., running wear):
Drying rate + Water Vapor Permeability
