
Size guides are no longer sufficient. With the measurement discrepancies from one brand to another, the textile compositions that alter the fit after washing, and the increasingly strict return policies, successfully shopping for fashion online this season requires a more technical approach than just a quick glance at a product sheet.
Size discrepancies between brands: reading beyond the standard guide
A size 38 from a French manufacturer does not correspond to a size 38 from a Scandinavian retailer or a Korean brand. The size charts displayed on e-commerce sites rely on internal standards, rarely aligned with a single norm.
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We recommend measuring three fixed reference points: bust circumference, natural waist circumference (above the navel), and hip circumference at the widest point. These measurements, taken directly on the skin with a flexible measuring tape, serve as a reliable basis for comparison from one site to another.
An underutilized tip is to photograph the inner label of your best-fitting pieces and note their actual dimensions, not the displayed size. When a product sheet states “flat bust width: 48 cm,” you can directly compare it with your reference. This is what allows you to shop on Marina Mode or any other online store with a minimal return rate.
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Customer reviews that mention the buyer’s body shape (and not just “fits well” or “runs small”) are the only ones truly useful. Look for comments that specify the usual size worn and the size ordered.

Textile composition and fit after washing: what the product sheet doesn’t say
A garment should not be judged by its cut in a photo but by its percentage composition. The proportion of elastane, polyester, or viscose radically alters the behavior of the fabric after a few washing cycles.
A top labeled 95% viscose / 5% elastane will lose its shape faster than a cotton-modal blend of equivalent weight. Viscose, a cellulosic fiber, stretches when worn and shrinks when washed, creating a gradual deformation effect that the model photos do not show.
- Favor pieces whose composition mentions at least two natural fibers (cotton, linen, wool) with a combined percentage greater than half of the total.
- Check for a sufficiently dense weight for basics: a t-shirt that is too thin pills after the third wash, regardless of the brand.
- Read the care instructions before purchasing, not after. A blazer labeled “dry clean only” represents a higher cost of use that must be factored into the displayed price.
According to Fevad, the clothing and footwear categories are among those with the highest return rates in e-commerce. A significant portion of these returns stems from a mismatch between the appearance on screen and the actual look of the fabric. Zooming in on seams, collar finishes, and lining details in product photos remains the best filter before confirming the cart.
Sales and private sales: balancing between cut prices and useful purchases
A discounted price never justifies an online fashion purchase on its own. Successive markdowns create a sense of urgency that pushes customers to order items outside their usual color palette or a cut they have never worn.
We observe that the most profitable purchases during sales involve renewing already validated basics. If you have been wearing a raw denim from a specific brand for two seasons and it goes on second markdown, it’s a rational purchase. Adding a synthetic leather jacket from an unknown brand just because it’s 60% off is not.
Price alerts and browser extensions that track a product’s price history allow you to verify if the displayed discount is real. Some retailers inflate the reference price a few weeks before sales to show a more attractive percentage discount.

Off-peak periods and capsule collections
The best deals do not always occur during official sales. End-of-capsule collection sales, private sales reserved for newsletter subscribers, and mid-season clearance operations often offer pieces at reduced prices without the pressure of major commercial events.
Virtual fitting tools and customer photos: assessing the actual look
Several online stores now offer virtual fitting features based on augmented reality. These tools remain imperfect for clothing (unlike glasses or makeup), but their progress is rapid.
While waiting for complete reliability, photos uploaded by customers in product reviews are the most reliable source for evaluating an item. They show the garment in natural lighting, on various body shapes, without retouching. A product that accumulates customer photos consistent with the official visuals deserves more trust than an item with no visual feedback.
Also check the return policy before ordering. Some retailers now charge for returns or impose a shorter time frame. Integrating this parameter at the time of choice avoids unpleasant surprises and encourages better selection in advance.
The current season pushes brands to enrich their product sheets with short videos showing the fabric’s drape in motion. An item presented only in a static photo on a white background deserves more caution than an item documented from multiple angles with a wearing video. This simple criterion already helps filter stores that invest in product transparency from those that settle for the minimum.