A modern approach to good fit includes four silhouettes. A body-con fit is form-fitting. A tailored fit is the structured standard that gently follows the contour of the body. A fluid fit is moderately roomy all over. An oversized fit is very baggy and voluminous.
There is no single way to fit a garment. Instead of deferring to designers and retailers, decide for yourself how an item should fit. Try different sizes of the item before making a purchase to effectively manipulate the fit and achieve the look you want.
Most people prefer a larger assortment of tailored and fluid fits, and fewer body-con and oversized fits. Create variety in the vibes, silhouettes and proportions of your outfits by including a range of different fits in your wardrobe.