Does the Brand In The Style Run Big or Small? What Is Their Sizing Like—and What Should You Buy?

In The Style has become a fast-fashion powerhouse in the UK, collaborating with influencers, reality stars, and celebrities to deliver bold, trend-driven collections. With high visibility on Instagram and affordable price points, it’s a go-to for partywear, co-ords, and casual staples. But with speed often comes inconsistency—and one of the biggest questions shoppers ask is: Does In The Style run big or small, and how do you find the right size?

👉 At Tellar.co.uk, we’ve analysed every single brand’s sizing data—including In The Style—and match it to your exact measurements using real data. No more size charts, no second-guessing. Just a quick one-time setup, and you’ll have access to your correct size in 1,500+ brands anytime. It’s always free to use, and you can even get a free measuring tape here to ensure accuracy. No catches—just precision sizing. Forever.

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Overview: In The Style Sizing – A Mixed Bag

Known for Fast Fashion, Not Size Consistency

Like many fast fashion brands, In The Style offers budget-conscious garments produced at speed. This means that fabric variation, supplier inconsistency, and rapid production can result in unpredictable sizing.

Common customer feedback suggests:

• Waistbands often come up tight

• Bust areas are sometimes generously cut

• Trouser and sleeve lengths can be inconsistent

• Size tags don’t always reflect real fit

Fit Verdict: Inconsistent. Dresses and trousers run small. Tops and casualwear are often true to size.

See related post: How Fast Fashion Affects Fit – Tellar Guide

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Is In The Style True to Size?

Dresses: Often Run Small

In The Style is known for its bodycon dresses and influencer-led glam drops. These styles often use non-stretch polyester blends and are cut for a tight silhouette, which means the fit is frequently on the small side, particularly around the waist and hips.

Example: A UK 10 customer may find a size 10 In The Style dress fits more like a UK 8.

Fit Verdict: Runs small in figure-hugging styles—size up for comfort.

Backlink: Top 30 Dress Brands & Their Sizing

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Co-ords & Casual Sets: Generally True to Size

From loungewear to jogger sets, these items tend to be roomier, often made with elastic waistbands or soft jersey. This makes them more forgiving and closer to standard UK sizing.

Fit Verdict: True to size or relaxed fit—safe to order your usual UK size.

Also read: Best Loungewear Brands for Fit

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Tops & Blouses: Slightly Generous Cut

Tops with balloon sleeves, cropped fits, and smock styles from In The Style tend to allow a bit more room, which can be helpful for those with broader shoulders or a fuller bust.

Fit Verdict: Runs true to size or slightly large—no need to size up unless fitted.

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Jeans & Trousers: Inconsistent and Often Tight

This is where most fit complaints lie. Jeans and trousers often come up tight in the waist and hips, especially if made from rigid denim or non-stretch polyester. Many customers suggest sizing up, especially in high-waisted styles.

Fit Verdict: Runs small—size up if between sizes.

More insights: How Trouser Sizing Varies Across Brands

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In The Style vs Standard UK Sizing: Chart Comparison

Takeaway: In The Style's sizing chart appears standard on paper, but actual fit—especially in tighter styles—often runs up to one size small.

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Fabric Type & Sizing Accuracy

Material matters more than you think. With In The Style, sizing variation often correlates with fabric choices:

• Rigid polyester → tight fit, no stretch

• Viscose or crepe → slightly forgiving but can cling

• Jersey/stretch knits → generally true to size

• Elasticated styles → relaxed fit

Pro Tip: Always check the stretch factor. Non-stretch = size up. Stretch = regular size or down if in doubt.

Explore more: How Fabric Impacts Sizing Accuracy

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Best Items to Buy from In The Style

✅ Recommended:

1. Smock Dresses & Tiered Styles

Great for comfort and typically true to size. Flattering and easy to wear.

2. Loungewear Sets

Affordable, cosy, and not overly tight. Stick to your usual size for a relaxed fit.

3. Casual Tops & Blouses

Stylish and forgiving. Ideal for those with a fuller upper body.

4. Statement Partywear (If Sized Up)

Their best-selling category—just size up, especially for bodycons and wrap styles.

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❌ Caution or Avoid:

• Rigid high-waisted jeans: Often feel two sizes too small

• Zipped formal jumpsuits: Tight through the torso and waist

• Slim-fit trousers: Little give in the fabric, runs tight

Need more direction? Check out our Slim-Fit vs Relaxed Fit Brand Comparison

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Skip the Size Chart—Get Instant Fit with Tellar

No more measuring yourself against inconsistent charts or reading dozens of mixed reviews. At Tellar.co.uk, you can:

• Enter your measurements (or known size in another brand)

• Get your exact size recommendation for In The Style

• Use that profile to shop across 1,500+ brands

Try it now: Tellar Store Size Lookup Tool

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Why Tellar.co.uk Is the Smarter Way to Shop

✅ One-time quick setup

✅ Tailored fit recommendations using brand-specific data

✅ Access your size in 1,500+ brands anytime

✅ Free measuring tape for total accuracy

✅ Completely free. Always. No catches

We’ve analysed every brand’s sizing data so you don’t have to. Whether it’s In The Style, Zara, or ASOS—you’ll never need to check a size chart again.

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Follow Tellar for More Fit Insights

Get updates, fit guides, and influencer brand breakdowns by following Tellar on:

• Instagram – @Tellarsizing

• Pinterest – TellarUK

• Facebook – Tellar Sizing

• Twitter/X – @Tellar100

Explore more sizing content here:

📌 Tellar Blog – Full Sizing Library

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Final Verdict: Should You Shop In The Style?

Yes—if you size smart.

In The Style delivers great style for less, especially if you’re trend-driven. But the key to a good experience is knowing where the sizing runs tight—and when to size up. Dresses, jeans, and jumpsuits often come up small, while loungewear and tops are much more forgiving.

And with Tellar.co.uk, you don’t need to guess. We give you your perfect size instantly, for In The Style and 1,500+ other brands.

✅ Find your size in In The Style now

It’s fast, it’s free, and you’ll never get your size wrong again.

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Find your size in 1,500+ brands real-time. It’s free & easy — Try Tellar today