Oversized and regular fit t-shirts serve very different styles, and knowing the difference helps you build a wardrobe that actually works for you. Regular fit tees follow the natural line of your body, sitting close at the shoulders and tapering slightly at the waist. They're versatile, easy to layer under jackets, and tend to look sharper for smart-casual outfits.
Oversized tees, on the other hand, are designed with extra room through the chest, shoulders, and sleeves for that relaxed, streetwear-inspired silhouette. They pair well with fitted bottoms like slim jeans or joggers to balance the proportions. Neither fit is objectively better — it comes down to the look you're after, though many people now keep both styles in rotation for different occasions.