Yes, ski pants are typically designed to be waterproof to protect the skier from moisture and wetness that can result from snow, slush, or rain.
This is important because wet clothing can quickly lead to discomfort, coldness, and even hypothermia in extreme weather conditions.
Ski pants are often made from waterproof materials , which are designed to repel water while still allowing for breathability to prevent overheating and sweating.
Some ski pants may also have additional features such as sealed seams, waterproof zippers, and adjustable waistbands to ensure a secure and comfortable fit.