The differences between men's jackets and women's jackets go beyond just sizing—they include design, fit, functionality, and styling details. Here's a detailed breakdown:

Men's Jackets: ① Straight or boxy fit – Designed for broader shoulders, narrower hips. ② Minimal waist shaping. ③ Longer torso and sleeves.
Women's Jackets: ① Tapered or cinched waist – Emphasizes curves. ② Shorter torso and sleeves (proportionate to height). ③ May have princess seams or darts for shaping.

Women's jackets often run smaller than men's even at similar measurements (e.g., a men's Small ≈ women's Medium). See jacket size chart for details.

About Buttons/Zippers. Men's Jackets: Left side fastens over right; Women's Jackets: Right side fastens over left (traditional).
About Pockets. Men's Jackets: Larger, functional (e.g., deeper); Women's Jackets: Often smaller, decorative, or angled for curves.
About Collars/Lapels. Men's Jackets: Wider, more structured; Women's Jackets: Narrower, softer, or stylized (e.g., ruffles).
About Colors/Patterns. Men's Jackets: Neutral tones (black, navy, gray); Women's Jackets: Wider variety (pastels, florals, metallics).

Men's Jackets: Prioritize utility (e.g., more pockets, heavier fabrics); Common styles: Workwear jackets, bomber jackets, trench coats.
Women's Jackets: Often emphasize fashion over function (e.g., faux pockets, lightweight materials); Common styles: Pea coats, cropped jackets, faux-fur coats.

Men's Jackets: Wider shoulder seams, longer sleeves (to accommodate arm length).
Women's Jackets: Narrower shoulders, shorter sleeves (adjusted for proportions).

Some brands offer unisex jackets (e.g., denim, parkas, puffers) with: Adjustable waists/cuffs, Neutral colors (black, olive, beige), Sizing closer to men's (women typically size down).

Women wearing men's jackets: Possible for oversized/streetwear looks (size down 1-2 sizes).
Men wearing women's jackets: Rarely works (too narrow in shoulders/chest).