Size guide: How do you know if clothes run large or small?
Shopping for clothes online is convenient – until you reach the product page and have to choose a size. Does your usual size fit, or should you go up or down? And what does it actually mean when a garment is described as “True to Size” or “Oversized”?
Size uncertainty is one of the most common reasons people hesitate before buying or end up making unnecessary returns.
Here’s Workout Brands’ honest expert advice: don’t blindly rely on the letter on the label (S, M, L, XL). What really matters is the intended fit of the garment. If a piece is designed as “Oversized,” your normal size is usually enough to achieve the correct look. If you want a more fitted silhouette, go down one size. Only go up a size if the product description explicitly says “runs small.”
Below, we break down the three most common fit codes so you know exactly how the clothes will actually fit you.
The 3 fit styles: how is the garment designed?
To get it right the first time, you need to understand the silhouette the brand has designed. In practice, there are three main categories:
1. True to Size (standard fit)
When a product is labeled “True to Size,” it means it follows standard international sizing.
How it fits: It follows the natural lines of the body without being too tight or too loose. A balanced fit suitable for most body types.
Our advice: Choose the same size you normally wear in most of your clothing.
2. Oversized / Relaxed fit
This is one of the most dominant styles in modern streetwear, where garments are intentionally designed to be looser and more relaxed.
How it fits: Extra room in the chest and body, dropped shoulders, and a generally looser silhouette. Designed for comfort and a relaxed look.
Common mistake: Many people think they need to size up to get the oversized look. In reality, the garment is already designed to be oversized – so your normal size is usually the correct choice.
3. Slim / Athletic fit
This fit is designed to sit closer to the body and highlight the physique.
How it fits: Tighter across the chest, arms, and waist, creating a more athletic and defined silhouette.
Our advice: If you want a regular fit, you may need to size up, especially if you are between sizes.
Our final recommendation: how to choose the right size
Our expert advice is simple: always base your decision on the fit – not just the size label.
- Want a standard fit → choose your usual size
- Want an oversized style → choose your usual size
- Want a tighter fit → size down (or size up if it’s slim fit)
Understanding this removes the guesswork – and significantly reduces the risk of wrong purchases and returns.
