MioLook: An app for choosing clothing sizes based on photos

Have you ever wondered why you sleep like a baby in one pair of pajamas, while in another, the exact same size as stated on the tag, you spend the entire night struggling with twisted legs and seams digging into your shoulders? As a stylist, I often hear the same phrase from clients: "Loungewear will handle anything, just go a size up." This is a huge and very uncomfortable misconception.

Clothes that are too big and poorly cut at the armholes interfere with sleep just as much as clothes that are too tight. For the past two years, I've completely abandoned manual measurements when working with clients online. Why? Because today An app for choosing clothing sizes based on photos It copes with the task dozens of times more accurately than we could with a yellow measuring tape. And it's not about magic, but about understanding "dynamic fit"—how an object behaves in motion.

Incidentally, this same problem of distorting actual measurements when measuring manually has a catastrophic impact on bra selection. We discussed this in more detail in our A complete guide to choosing lingerie online using AI In this article, we'll explore how to properly digitize your body so that your loungewear feels like a second skin.

The Tape Measure Illusion: Why Loungewear Often Fits Uncomfortably

According to a WGSN study (2024), 80% of women wear the wrong size lingerie and loungewear, regularly buying items that restrict their movement. Last month, I was reviewing one of my clients' wardrobes. We found five luxurious silk pajamas (averaging €180 each) simply gathering dust in the closet. The client complained that they "cut into the armpits." For years, she'd been buying a size M based on her bust measurement. But the problem lay in her back width and shoulder roll—parameters that a standard measuring tape simply ignores.

When we take our own measurements, the "sucked-in stomach" phenomenon kicks in. We involuntarily straighten up, tighten our abs, hold our breath, and tilt our head down to look at the numbers on the tape. At this point, our posture distorts, and we get "static" numbers that have nothing to do with reality.

There is a term in clothing design ease allowance — allowance for ease. For stiff fabrics (like heavy denim), it's one thing, but for loungewear, it's completely different. Loungewear allows for 4 to 12 cm of ease. When you try to buy an oversized garment by simply choosing two sizes larger, you end up with a looser silhouette, but instead of a relaxed silhouette, you'll end up with a slouched shoulder line and overly long sleeves.

How MioLook Reads Your Anatomy: A Photo-Based Clothing Size Selector App

If the feed is lying, who should you believe? The answer lies in computer vision technology. When you use An app for choosing clothing sizes based on photos The algorithm works like an experienced Italian tailor: it evaluates the figure "by eye", but with mathematical precision down to the millimeter.

The transition from 2D to 3D modeling changes everything. The neural network calculates not just circumferences (bust, waist, hips), but also volume distribution and proportions. For example, two women may have the same hip circumference—100 cm. But for one, this volume is concentrated in the buttocks, while for the other, it's in the "breeches" area of the hips. They require completely different cuts of trousers.

Posture is another blind spot for standard measurements. MioLook analyzes your natural lower back arch and shoulder slope. If you have sloping shoulders, the straps of a standard-fit tank top will constantly fall off. The AI takes this into account and selects patterns with an adapted back.

"Body scanning algorithms reduce online clothing return rates by 37% by taking into account pelvic tilt and weight distribution, rather than just linear measurements," according to a McKinsey report on the future of fashion tech (2024).

Many people are concerned about privacy. It's important to understand: MioLook doesn't store your photos openly on servers. The image is processed locally or in a secure cloud, turning it into a set of dozens of digital dots (vectors), after which the photo itself is deleted. Only your anonymized 3D avatar remains in the system.

Step-by-step profile setup: preparing an avatar for perfect matching

For the AI to produce a perfect result, the initial data must be entered correctly. This isn't difficult, but it does require following a few rules. In my experience, 9 out of 10 unsuccessful scans are due to the client being photographed in a loose hoodie under the dim light of an energy-saving light bulb.

Here's a checklist for a perfect scan:

• Correct clothing: Wear tight leggings and a sports bra (or basic underwear without stiff cups). No folds or creases to hide your body contours.
• Natural state: Perform the scan BEFORE a heavy dinner and in a relaxed state. Stand up straight, but don't stand at attention like a soldier. Keep your shoulders where they normally are.
• Light and angle: Shoot in natural daylight from a window. The camera should be positioned exactly at stomach level, perpendicular to the floor (not pointing up and down!).

After creating an avatar in MioLook, pay attention to the slider Fit Preference (fit preferences). This is a brilliant feature. If you like your pajamas to fit snugly (Slim), or, conversely, prefer a more oversized effect (Oversize), adjust it here. The algorithm will automatically calculate the necessary allowance.

Lounge vs. Sleep: Fine-Tuning Your Home Wardrobe

The home wardrobe is divided into two fundamentally different categories: sleepwear and loungewear. They require different approaches.

Pajamas and nightgowns should be as loose as possible around the armholes and knees—this is where the fabric stretches when we toss and turn. Loungesuits, cardigans, and joggers can be a tighter fit.

A separate nuance is the fabric. The app's AI MioLook Analyzes the composition of items in the catalog. If you choose pajamas made of 100% silk (say, 19 momme), the app will take into account that silk has absolutely no stretch and suggest a size with more room. However, viscose jersey with 5% elastane is more forgiving—you can choose a true-to-size size.

Top 3 Mistakes Newbies Make When Choosing Loungewear Using AI

Even the smartest technologies can make mistakes if given the wrong input. AI can't read your mind—that's its biggest, honest weakness. Here are the three main errors I regularly correct in my clients' profiles:

1. Double Oversize Error. You find an H&M hoodie in the catalog that's already oversized, but you also have the "I prefer an oversized fit" option checked in your profile settings. As a result, the algorithm suggests an item two sizes too big, and you're drowning in the sleeves. The rule is simple: for relaxed fit items, leave the fit setting set to "Regular."
2. Ignoring the growth parameter. Many people think that height isn't important when buying wide-leg pajama pants. In fact, height determines the crotch drop. If you're 160 cm tall and haven't indicated this in your profile, the waist of standard-fit pants will fall right under your bust, and the inseam will drop down to your knees.
3. Scanning in corrective underwear. One of my clients decided to cheat and scanned wearing a push-up bra and control shorts. As a result, all her knitted tops turned out to be too big in the bust (we don't wear hard foam at home), and her pants were too tight around her hips. Be honest with the algorithm—it's working for your comfort, not evaluating your figure.

Stylist checklist: how to update your parameters before the new season

Our bodies aren't static. We lose weight, gain weight, and our posture changes due to sedentary work. I strongly recommend updating your photoscans every 3-6 months, especially during the changing seasons.

A winter loungewear capsule collection is radically different from a summer one. When we switch to heavyweight cotton (180 g/m² and above), fleece, or thick flannel, the bulk of the fabric itself eats up some of the space between the body and the garment. Up-to-date measurements in the app will help you avoid making a mistake when ordering a warm suit from Oysho or Uniqlo (where the average price is €40–€80—it's a shame to get the wrong size and pay for a return).

By creating your own capsule wardrobe using smart selection, you solve two problems at once: items fit perfectly and coordinate perfectly in proportions. A long cardigan won't clash with wide palazzo pants because the AI has already calculated the right balance of volumes for your body type.

The key insight all my clients come to is: stop adapting to uncomfortable clothing. Open the app right now, spend three minutes creating a perfect avatar in good lighting, and let technology finally begin to work for your personal comfort. After all, home is the only place where you owe no one anything except being completely relaxed.