Jackets are usually designed with a waistband, which are looser and more flexible. Commonly used fabrics include denim, woolen and sports fabrics. The suit is the representative of formal wear, and the style is relatively fixed.
What to wear today" is a century-old problem that has troubled many men, especially during the transitional period between seasons. Too much warm clothing and too little cold clothing makes it look ugly even if you wear it casually.