Purpose: A ski jacket is specifically designed for skiing and other winter sports. Its primary goal is to provide protection against cold, wet, and windy mountain conditions. A normal jacket, on the other hand, is made for general use and may not offer the specific protections needed for winter sports.
Insulation: Ski jackets often come with specialized insulation to retain body heat. This insulation can either be down or synthetic material, optimized to keep the wearer warm even in extreme cold conditions.
Waterproofing: While some normal jackets offer waterproofing, ski jackets are typically designed with high-quality waterproof materials to prevent snow and moisture from seeping through. They also usually have a waterproof rating to inform the wearer of their effectiveness against wet conditions.

Breathability: Ski jackets are made to be breathable, allowing moisture from sweating to escape, preventing the wearer from getting damp and cold from their own perspiration.
Features: Ski jackets come with specific features such as snow skirts, pass pockets, pit zips for ventilation, and reinforced areas prone to wear and tear. These features are tailored for the convenience and demands of winter sports.
Fit and Mobility: Ski jackets are tailored for movement, allowing the wearer to freely maneuver on the slopes. They often have a more ergonomic design compared to some regular jackets.
In essence, while both types of jackets provide warmth, a ski jacket offers specialized features and protection to cater to the demands of winter sports enthusiasts.

