If I can add another difference.
The seams in foul weather are welded to prevent leaks. Some ski wear might be welded, but I trust my foulies much more. I spend about 6 months a year in a ski jacket.
ISPA Yachtmaster Offshore Instructor Evaluator
Sail Canada Advanced Cruising Instructor
IYT Yachtmaster Coastal Instructor
ASA 201, 203, 204, 205, 206, 214
As I sail, I praise God, and care not. (Luke Foxe)