Introduction
You spot the perfect women’s t-shirt online: gorgeous color, soft fabric, looks amazing on the model. You add to cart, wait excitedly, and when it finally arrives… it’s either swimming on you or feels like it shrank in the mail.
Sound familiar? Yeah, we’ve all been there.
The difference between a t-shirt you tolerate and one you actually love often comes down to one thing: getting the fit right. At ComfyThreads, we’re mildly obsessed with making sure that never happens to you again.
This isn’t another boring women’s t shirt size chart you’ll ignore. It’s the no-BS cheat sheet that finally makes women’s t-shirt shopping feel easy (and maybe even fun).
Why Women’s T-Shirt Sizing Feels Confusing
Here's the thing nobody talks about: women's t-shirt sizing is inconsistent because there's no universal standard. One brand’s Medium fits like a dream, another brand’s Medium feels like it was made for someone else entirely.
Add in some cuts, fabric blends, and trending silhouettes, and now it’s a different ball game altogether.
Still, why does women’s sizing always feel like a personal attack? Here are some reasons:
- Real curves exist (shocking, we know). Majority of brands choose average proportions for sizing, but real bodies don't work that way. Rectangle, hourglass, pear - body shapes vary in women.
- “Shrinkage lies.” That 100% cotton tee might fit perfectly fresh out of the package… until it meets your washer.
- Vanity sizing is real. Some brands quietly bump sizes up so you feel amazing in a Small (marketing genius, fit nightmare).
- Trendy cuts change everything. A cropped baby tee and a classic boyfriend fit will never play by the same rules.
The result? You own twelve t-shirts, and only three actually feel right. We’re here to fix that.
Keep scrolling for our dead-honest women’s t-shirt size chart, plus the fit guide that actually explains what relaxed fit, or oversized fit, really means on your body.
Understanding Standard Women’s T-Shirt Size Charts
Before you scroll into the actual women’s t shirt size chart, here’s one thing to know: most size charts are built around a few key measurements — bust, waist, and overall length. Brands tweak these numbers based on their women’s tee styles,
So, if you’re between sizes, ask yourself one question—do you want to live your best snug life or your cozy oversized life? Size down for hug, size up for chill.
How to Measure Bust, Waist & Length Correctly
Most women's t-shirt size charts look intimidating, but they're just comparing four basic measurements: bust, waist, body length, and sleeve length. All you need is 60 seconds and a soft tape measure.
Bust
Stand straight and wrap the tape around the fullest part of your chest. Keep it parallel to the floor — not too tight, not too loose. This is the number that decides whether a tee will pull, stretch, or sit smoothly.
Waist
Find your natural waist (usually just above your belly button). Wrap the tape around this point. This helps you choose between fitted cuts or relaxed styling basics where the waist isn’t as defined.
Length
Take a t-shirt you already love, lay it flat, and measure from the highest point of the shoulder to the hem. Length is what decides whether a tee sits at the hip, covers the tummy, or feels cropped without meaning to.
Once you have these three measurements noted, the fit guide that follows will make a lot more sense
Quick reference:
Source: Comfythreads
Difference Between Relaxed, Slim & Boxy Fits
Relaxed, Slim, Boxy, or Oversized - what do these words even mean? We’re done with vague labels. Here’s what each fit means:
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Slim Fit: Hugs your curves without squeezing the soul out of you. Think “I still look like I have a waist.”
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Relaxed Fit: Room to move, breathe, and hide the burrito. Slightly wider through the body and sleeves.
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Boxy Fit: Intentionally square and cropped. Street-style vibes, great with high-waist everything.
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Oversized/Boyfriend Fit: Basically, your partner’s tee that you stole and never gave back. Dropped shoulders, extra length, maximum comfort.
How Fabric Stretch Impacts Sizing
Two tees can be the same size and still feel completely different. The reason is fabric stretch.
Cotton (0–5% stretch)
Pure cotton feels soft and natural, but won’t stretch much. If you prefer movement or room at the bust, stick to your true size or size up.
Cotton-Spandex / Cotton-Lycra (5–10% stretch)
This blend flexes with your body. Slim fits in this fabric feel comfortable, not restrictive. Ideal if you like fitted silhouettes without the squeeze.
Ribbed Fabrics
Rib knits can stretch a lot. Even a smaller size can fit comfortably, but keep in mind that ribbed tees can hug curves more than flat cotton.
Heavyweight Knits
Thicker fabrics give a structured look. They hold their shape well, especially in boxy styles.
How to Compare Sizes Across Brands?
US Medium ≠ UK Medium ≠ EU Medium. Save this cheat sheet:
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US 4–6 = UK 8–10 = EU 36–38
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US 8–10 = UK 12–14 = EU 40–42
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US 12–14 = UK 16–18 = EU 44–46
When in doubt, ignore the letter and match the actual inches/cm on the chart. Letters lie. Numbers don’t.
Common Mistakes to Avoid When Choosing Sizes
A few small mistakes can throw off your whole order. Here’s what not to do:
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Trusting the size you wore in 2019 (bodies change, it’s fine).
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Ignoring fabric stretch. Some brands still shrink 1–2 inches.
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Forgetting that different women’s tee styles fit differently
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Measuring over bulky clothes
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Using an old or stretched-out tee as your reference
- Overlooking length — especially if you're tall or petite
Tips for Finding the Perfect T-Shirt Fit for Your Body Type
Now that you know what not to avoid, below are some tips to find comfortable t-shirts for your body type:
- Petite: Go for shorter lengths or boxy cuts so the tee doesn’t overwhelm your shape.
- Curvy/Busty: Relaxed and semi-slim fits create balance without feeling tight.
- Straight body shape: Look for styles that create the illusion of curves. Avoid boxy cuts that hide your frame completely. Scoop necks, V-necks, and details like pockets or patterns can add visual interest.
- Tall: Look for elongated lengths or size up for extra drop.
- Athletic: Structured or boxy styles add shape and softness to your silhouette.
Whatever your body type, comfort must be your #1 priority. The right tee should feel natural, move easily, and match how you like to dress.
Conclusion
You now know exactly how to measure, what each fit really looks like on a real body, and which size will make you pull the tee out of the laundry first.
At ComfyThreads, we believe every woman deserves t-shirts that actually feel like a hug.
Which is exactly why all our product pages include clear sizing details, fabric notes, and a style description, so you know exactly what you’re getting before it lands at your door.
Ready to find your perfect tee?
Browse our latest women’s t-shirt collection. The cart’s open, the size chart’s waiting, and the comfiest tees you’ll ever own are just a couple of clicks away.
FAQs
How do I find my correct T-shirt size?
You can measure the bust, waist, and length from a tee you already love and use it to compare the women’s t-shirt size chart on the product page.
Why do women’s T-shirt sizes vary between brands?
As there is no universal size standard, each brand uses different fit models and measurements. Regional differences and target demographics also affect sizing.
Do cotton T-shirts shrink after washing?
Yes, if washed with hot water, they shrink a lot.
What size should I choose for an oversized look?
For an oversized fit, order one to two sizes up from your usual size.