2. Because men's waist joints are lower and women's waist joints are higher than men's, the difference is the length of the vertical file. Similarly, men's trousers are 2-3 cm longer than women's crotch.
3. The widest part of men's trousers is the waist, and the widest part of women's trousers is the crotch, because women's hips are fuller than men's, so the crotch is looser.
4. At present, men's sweatpants are mainly loose, while women's sweatpants are mainly self-cultivation.