Look for these two numbers (e.g., 15k/15k) to gauge performance:
: Best for versatility and backcountry riding. They have no built-in insulation, allowing you to layer up or down depending on the weather.
: Measures how well sweat vapor escapes. Higher numbers prevent you from getting "swampy" during intense riding. What To Look For When Choosing a Ski or Snowboard Jacket
: Measures how much water pressure the fabric can withstand before leaking. 10,000mm (10k) : Standard for typical resort conditions.