Does the Brand Arch 44 Run Big or Small on Clothes Sizing?
Author: Stylist at TellarDate: 2025
I
ntroduction: Technical Performance Meets Minimalist Style
Arch 44 is a relatively new but rising name in functional fashion. Known for its fusion of utility-driven design, minimalist aesthetics, and premium performance materials, Arch 44 stands out in the growing category of technical leisurewear. But for customers shopping online or across international stockists, a key question persists:
Does Arch 44 run big or small on clothes sizing?
In this detailed sizing guide, we examine Arch 44’s fit across its collections, share what customers and retailers are saying, and explain how you can find your perfect size instantly using tellar.co.uk—the UK’s leading free sizing tool.
What Is Arch 44?
Arch 44 focuses on functional, streamlined pieces that bridge fashion and performance. Designed with modern urban wearers in mind, the brand features:
Clean lines, architectural silhouettes
Durable, water-resistant fabrics
Technical tailoring with stretch mobility
Monochrome palettes and gender-neutral appeal
Its garments are designed to move with you, but sizing consistency is still key—especially since the brand balances technicality with fitted silhouettes.
Does Arch 44 Run Big or Small?
The Short Answer
Arch 44 runs true to size, but with a streamlined, tapered fit—particularly in trousers, jackets, and tailored outerwear.
Fit Breakdown by Category:
Outerwear (Shells, Jackets): True to size but cut close to the body; size up for layering or broader frames
Trousers & Joggers: Slim through the thighs and calves; flexible waistband but less forgiving around the seat
T-shirts & Base Layers: Fitted performance style; size up if you prefer a relaxed fit
Overshirts & Layering Pieces: Typically boxy or structured; mostly true to size
In general, Arch 44’s sizing reflects modern athletic tailoring—so it’s best suited to lean, straight builds unless you size up.
What Customers Are Saying
Early adopters and style reviewers have consistently noted that while Arch 44 pieces are well-constructed, the cut is precise—and may feel tight depending on your build.
“Love the tech details, but the trousers were tighter than expected—size up if you squat.”
“Slick aesthetic but slim through the arms. Had to size up in the shell jacket.”
“Not oversized at all—this brand runs fitted, which works if you're lean.”
This suggests a form-flattering, minimalist fit, rather than anything slouchy or oversized. Athleisure fans expecting a roomy silhouette may want to adjust sizing accordingly.
Arch 44 Size Chart and International Conversion
Most Arch 44 pieces are listed in UK sizing, though some international stockists (especially EU-based) list sizes in EU or US equivalents.
UK Size | EU Size | US Size | Fit Comment |
|---|---|---|---|
XS (6) | 36 | 2 | Snug fit |
S (8) | 38 | 4 | Fitted across shoulders |
M (10) | 40 | 6 | True to size |
L (12) | 42 | 8 | Slightly slim in hips |
XL (14) | 44 | 10 | Close fit |
If you have broader shoulders, muscular legs, or a curvier frame, size up once in bottoms or tailored jackets.
Why Sizing Matters More with Technical Clothing
Because Arch 44 blends style and function, the wrong size doesn’t just affect comfort—it affects movement. The use of water-resistant nylons, bonded seams, and minimal stretch fabrics means:
Too-small pieces restrict motion
Too-large pieces ruin silhouette and performance
Incorrect sizing limits breathability and garment lifespan
This is where Tellar.co.uk helps.
How Tellar.co.uk Helps You Find the Right Arch 44 Size
Tellar.co.uk is the UK’s most advanced free sizing tool that compares your body measurements to fit data across 1,500+ fashion brands, including emerging labels like Arch 44.
With Tellar.co.uk, You Can:
Enter your bust, waist, and hip once and forget the rest
Match your body to the correct size across different categories
Account for brand-specific fit notes like “slim hip fit” or “tailored chest”
Convert automatically between UK, EU, and US sizing
Get a free measuring tape posted to your door
👉 Check your size in Arch 44 now
How to Measure Yourself for Arch 44

With Arch 44’s structured tailoring and performance fit, precision matters. To use Tellar accurately, measure:
Chest/Bust: Around the fullest part
Waist: At the narrowest point (above your hips)
Hips: Around the widest part of your lower body
For trousers or outerwear, you may also want to measure inseam and shoulder width if you're between sizes.
No tape? Get one free here:
How Arch 44 Compares to Other Brands
If you're used to oversized UK brands like COS or relaxed-fit streetwear labels like Aries, Arch 44 will feel:
Tighter in the sleeves and thigh
Shorter in length, but sharper in structure
More fitted through the torso and seat
But if you already wear brands like A-COLD-WALL* or Stone Island Shadow Project, the fit of Arch 44 will likely feel familiar.
Related Reading on Tellar.co.uk
Learn more about sizing in emerging fashion brands:
Why New Labels Have Unique Fits
What ‘True to Size’ Really Means
Final Fit Advice for Arch 44
Garment Type | Fit Style | Sizing Recommendation |
|---|---|---|
Trousers & Joggers | Slim tapered | Size up for muscular legs |
Jackets & Coats | Streamlined/structured | Size up for layering |
Base Layers | Sculpted | True to size or size up |
Overshirts | Slightly boxy | True to size |
If in doubt, check the garment measurements or let Tellar do it for you.
CTA: Take the Guesswork Out of Sizing
Ready to shop Arch 44 without worrying about sizing mistakes?
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✅ 1,500+ brands matched to your body
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👉 Get your exact Arch 44 size
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Summary
Arch 44 runs true to size, but with a slim, precise cut. If you're between sizes or prefer relaxed fits, sizing up is usually the right call—especially in trousers and structured outerwear. Use tellar.co.uk to find your ideal fit quickly, confidently, and for free.
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