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Sisters & Seekers Size Guide: What Size Am I in Sisters & Seekers? UK Sizing Help & Fit Advice

By Robin Blake — Sizing Expert Stylist & Founder of TellarDate: 2025

Always Honest, Unbiased, Unsponsored & Free Content.

Modern Streetwear Fit Breakdown | Tellar.co.uk


Minimalist Streetwear with a Statement — But What Size Should You Buy?

Sisters & Seekers has quickly built a cult following for its clean branding, neutral tones, oversized silhouettes and unapologetic messaging. Based in the UK, this female-founded label specialises in limited-edition drops of sweats, co-ords, slogan-heavy basics, and elevated essentials that sell out fast.

But with a mix of unisex styles and oversized fits, many shoppers wonder:

What size am I in Sisters & Seekers? Do their sweatshirts and joggers run big or small?


Want to skip the size charts?

tellar.co.uk and find your size in Sisters & Seekers and thousands of brands — all based on your exact measurements. One setup. Always free. Includes a printable measuring tape to get started.


Does Sisters & Seekers Run Big or Small?

Sisters & Seekers follows UK sizing, but many of their core pieces — especially sweatshirts, joggers, and outerwear — are oversized by design. This means:

  • Most tops and loungewear styles run large for a relaxed fit

  • Bottoms like joggers are generally true to size at the waist, with a looser leg

  • Fitted items like tank tops or crop tees run true to size or slightly small, depending on fabric

💡 If you prefer a standard or close-to-body fit, consider sizing down in their oversized collections.


UK Size Conversion for Sisters & Seekers

UK Size

S&S Label

Fit Notes

UK 6

XS

May be roomy in oversized styles

UK 8

S

True to size in fitted pieces

UK 10

M

Comfortable and relaxed fit

UK 12

L

Slightly oversized feel

UK 14

XL

Best for layering or looser drape

UK 16+

XXL

Available in select styles

🎯 Check your Sisters & Seekers size instantly at Tellar and see how it compares to thousands of brands.


Sisters & Seekers Sizing by Category

✦ Oversized Sweatshirts & Hoodies

These are the brand’s bread and butter. Designed to be boxy, dropped-shoulder, and oversized, especially in the sleeves and torso.

  • Size down if you’re between sizes or prefer a more traditional fit

  • Stick to your normal size for the intended roomy silhouette

✦ Joggers & Co-Ords

Relaxed, elasticated waist, and often cuffed at the ankle. Waistbands typically run true to size, but the leg and rise can feel baggy by design.

  • Stay true to size for comfort

  • Petite shoppers may want to size down for proportion

✦ Fitted Tees & Crop Tops

Less oversized than the rest of the collection. These are closer-cut, with stretch or ribbed cotton.

  • Size up if you prefer a looser fit or are busty

  • True to size for most UK shoppers

✦ Jackets & Outerwear

Tends to be oversized and boxy, perfect for layering. Many pieces are unisex.

  • True to size for a slouchy fit

  • Size down if you want a cropped or sharper finish

📏 Download your free measuring tape from Tellar and set up your body profile


Real Sizing Feedback from Tellar Users

Item Type

Runs Small

True to Size

Runs Large

Oversized Sweatshirts

✅

✅

Joggers

✅

Fitted Tops

✅

✅

Unisex Outerwear

✅

✅


🧵 Also shopping UK-based streetwear or lounge-led brands? You’ll love these fit guides:


What to Try from Sisters & Seekers

✔ The ‘Reality Check’ Sweatshirt

One of their most iconic oversized pieces. Stick to your usual size for the intended roomy look, or size down for a neater silhouette.

✔ Core Co-Ords (Joggers + Sweatshirt Sets)

High-quality fleece, comfy waistband. True to size at the waist, oversized up top.

✔ Ribbed Crop Tanks

Great for layering. Size up if you’re fuller-busted or prefer more length.

✔ Statement Outerwear

Boxy and minimalist — true to size or size down for a sleeker fit.

🛍 Compare your Sisters & Seekers size to thousands of brands now with Tellar


Useful Fit Tips Before You Order

  • Expect oversized proportions — if in doubt, size down

  • Fitted styles are less forgiving — check stretch and bust width

  • Tall or petite? Watch out for sleeve and body length in drop-shoulder styles

  • Use Tellar to avoid trial and error, especially when shopping limited drops


Why Tellar.co.uk Is the Smart Way to Shop Sisters & Seekers

With frequent drops and sold-out collections, Sisters & Seekers moves fast — and getting the right size first time is key. Tellar helps you shop smarter by removing the guesswork.

What you’ll get:

  • Personalised size matches based on your body

  • A free printable measuring tape

  • Real-time sizing results across thousands of brands

  • Insights adapted by fabric, fit, and category

  • Always free to use — no signup needed to view your result

Start now and find your perfect fit in Sisters & Seekers


Related Fit Guides You’ll Find Helpful


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Sisters & Seekers Size Guide: What Size Am I in Sisters & Seekers? UK Sizing Help & Fit Advice