How to choose oversized clothes online and avoid them being too tight

"To get a looser fit, just buy a size or two bigger." After 12 years as a personal stylist and buyer, I've learned that this is perhaps the most damaging fashion advice of the decade. If you buy a standard fitted shirt in an XL instead of your size M, you won't achieve a stylish, casual look. You'll end up with a neckline that falls on your collarbone, sleeves that hang uncomfortably, and you'll visually add a few extra pounds.

The statistics are stark: according to a 2024 Drapers industry report, up to 40% of e-commerce clothing returns are due to disappointing fit expectations. We order clothes expecting a generous, relaxed fit, only to receive a cheap, snug fit that highlights every wrinkle. We explore the basic principles of fit and how technology can help avoid mistakes in our complete guide to Virtual try-on of modest fashion clothes online And today we'll talk about the architecture of the things themselves.

This article is your practical guide. I'll tell you, How to choose oversized clothing online , relying not on the beautiful poses of the models, but on the design, the density of the fabric and the correct reading of the product card.

How to choose oversized clothing online: why the "go one size up" rule is hopelessly outdated

I had a client, Anna, a financial analyst. She absolutely hated tight-fitting clothes. Trying to achieve that "air gap" between her body and the fabric, she'd buy basic turtlenecks and jumpers in size L, even though she confidently wore a size S. The results in the fitting room always disappointed her: the armholes dropped almost to her waist, creating an untidy bubble under her arm, and the shoulder seam jutted out at a sharp angle somewhere around the middle of her forearm.

In clothing design technologies there is a concept "easy fit allowance" (EF) In truly oversized pieces, this allowance is mathematically calculated.

• Product width increases by 10–20 cm, creating volume.
• Neck remains true to size so that the item does not slip off your shoulders.
• Sleeve length It is adjusted to take into account the dropped shoulder so that the cuff ends exactly at the wrist bone, and does not hang down on the fingertips.

The difference between an oversized garment and one that's not your size is the difference between thoughtful design and a random sack.

Read the description, don't trust the photos: Secrets of studio photography

As someone who regularly attends commercial shoots for mass-market catalogs, I'll let you in on a secret: what you see in the photo is often an illusion. To ensure a garment flows beautifully on a model in a dynamic pose, stylists on set use paper clips, double-sided tape, and pins. The model's back is often pinned to create a perfectly draped front.

That's why, when deciding how to choose oversized clothing online, your main focus should shift from images to text.

Look for the following cutting markers in the product card in English or Russian:

• Relaxed fit - relaxed fit (provides those same 3-5 cm of freedom from the body).
• Boxy - square, shortened but wide cut (ideal for T-shirts and jackets).
• Drop shoulder - dropped shoulder line.
• Cocoon / Draped - a "cocoon" silhouette or a garment with built-in drapery.

And always, Always Open reviews with user photos. Only there will you see how the item performs without professional studio lighting and pins.

Fabric Physics: Materials That Flow, Don't Stick

Even the most brilliant cut will be ruined by the wrong fabric. Thin, flimsy knitwear is the main enemy of modest and classy fashion. If it's made of low-density viscose with 5-10% elastane, it will cling treacherously, highlighting even those folds you don't physically have.

For a loose fit, the fabric must work in one of two ways: either keep in shape (architectural silhouette), or it flows heavily (soft silhouette).

Shape-stable fabrics (cocoon effect):

• Cotton poplin. The density should be no thinner than 120 g/m² (ideally 150–180 g/m²). In macro photography, this fabric looks dry and matte, and it will stand up beautifully.
• Wool and gabardine. An excellent choice for jackets and trousers, they create a frame around the body.

Flowing fabrics (soft oversized):

• Tencel (lyocell) and cupra. These are heavy, "cold" materials. They fall under their own weight without catching on your hips.
• Heavy silk and crepe.

A fair rule: a stiff, oversized architectural style made of thick cotton doesn't work well on figures with a very full bust—it creates a "tent" effect. In this case, always choose the second option (heavy, flowing fabrics).

A Guide to European Mass Market: Where to Find the Perfect Loose Fit

Over the years of shopping guiding, I've developed a clear brand matrix. Mass-market patterns vary greatly depending on the brand's DNA. Let's take a look at some tried-and-true brands in the €30 to €150 price range.

COS – the kings of architectural minimalism (€80–€150)
Their basic patterns already include a colossal amount of volume. If you wear a medium, feel free to buy a size S shirt from COS. It will fit exactly as the designer intended: with wide armholes and a loose back. Trying to buy a medium will simply drown you.

Massimo Dutti – Elegant Drapery (€70–€120)
Their strong point is flowing silhouettes. The brand excels at using just the right amount of viscose and linen. The fit is relaxed, but more classic than COS. You can go up a size if you prefer a more full-bodied effect.

Zara and H&M are the hotspots (€30–€80)
These brands' basic lines often skimp on fabric. A standard Zara shirt will require you to buy a size L or XL to achieve a loose fit. However, if you check out their premium lines ( Zara Studio , H&M Premium Selection ), you will find an excellent cut made from dense fabrics, where the oversize is already included in your natural size.

Trigger zones in photos: where to look to avoid tightness

When looking at photos in an online store, ignore the model's color, makeup, and fashionable accessories. Conduct a visual audit of the design.

Drop shoulder

This is the most important comfort indicator. If the shoulder seam sits directly on the shoulder bone (set-in sleeve), but the garment itself feels loose, this is a risk. Any arm movement will cause the fabric to stretch across the back and chest. A seam dropped 5-10 cm below the shoulder ensures a wider armhole and no tension in the underarms or chest.

No darts and straight cut

Zoom in on the photo and look closely at the bust and waist area. See vertical or diagonal darts? Close the page. Darts are designed exclusively for a fitted fit. Look for the words in the card. straight (straight) or A-line items.

Checklist: 5 questions before checking out

No impulse purchases. Before you click "Pay," go through this self-checklist:

1. Is the silhouette included in the description? Look for the words relaxed, oversized, or loose. If it says slim or regular, the item will fit snugly.
2. Does the fabric hold its shape in the video? Almost all major retailers include a walk-through video of the model. Notice how the fabric behaves when you walk: does it spring and hold its shape (good) or does it tangle loosely between your legs (bad).
3. Is the shoulder seam dropped? We examined the armhole area and made sure that the seam was below the shoulder bone.
4. How tall is the model? If the description says: “The model’s height is 180 cm, size S,” and you are 162 cm tall, this “mid-thigh shirt” will turn into a short dress for you, and the sleeves will have to be rolled up in three folds.
5. Does it contain elastane? If you're looking for a flowing, loose fit, the elastane (spandex) content of the knitwear should not exceed 1-2%, otherwise it will act as an elastic band, pulling the fabric towards the body.

The End of the Returns Era: How Virtual Try-Ons Save Your Stress

Even with the perfect checklist, online shopping remains a gamble. The concept of modest fashion and relaxed fit demands a high degree of precision: the line between "stylish oversize" and "shapeless hoodie" is measured in millimeters.

This is where technology changes the game. Imagine no longer having to guess how that Massimo Dutti shirt will fit your shoulders. Modern AI tools can analyze your body measurements and predict fabric tension points.

I highly recommend my clients to use the app. MioLook For a preliminary purchase audit. You can upload a photo of the desired item and see how the cut will fit into your current wardrobe, and most importantly, ensure that the silhouette will work for you, not against you.

A well-chosen oversize is never an attempt to hide or conceal your figure. It's a way to give your body room to breathe and your look a refined, classy casualness. Choose thick fabrics, look for dropped shoulders, and remember: the correct size is always determined at the pattern stage, not in the basket when choosing an XXL.