Shopping for clothes should feel exciting, but let’s face it: sizing confusion often makes it frustrating. Terms like “plus-size,” “2X,” and “XXL” can leave you scratching your head, wondering, What does this actually mean? If you’ve ever wondered whether size 15 is plus-size, if XXL is the same as 2X, or why one size fits perfectly at one store but not another, you’re not alone.
As a designer and founder of Undersummers, I’ve spent years navigating these questions while creating garments for women of all shapes and sizes. Today, I’m diving into the nitty-gritty of sizing to clarify the confusion, explain what these terms mean, and share how we approach sizing at Undersummers.
Is Size 15 Plus-Size?
To answer this, we need to understand how sizing works in the fashion industry. Size 15 typically falls into the “juniors” category, which is designed for younger body shapes that tend to have narrower hips and less pronounced curves. Juniors sizes are odd numbers (like 1, 3, 5, etc.), while “misses” and “plus” sizes are usually even numbers (like 14, 16, 18, etc.).
Size 15 is often considered a "bridge" size. It’s larger than straight sizes like 10 or 12 but not quite the same as plus sizes, which often start at size 14W or 16W. Whether size 15 is considered plus-size depends on the brand and how they classify their sizing. However, it’s generally not included in standard plus-size ranges but might be the last size in juniors or transitional collections.
Is Size 15 Bigger Than Size 14 Plus?
Here’s where it gets tricky. A size 15 in juniors sizing may not actually be larger than a size 14 plus-size. Why? Because juniors sizes and plus sizes are designed for different body types.
- Juniors Sizing (like size 15): Designed for straighter body shapes, with less room in the hips, bust, and thighs.
- Plus Sizing (like size 14W): Designed for curvier body shapes, with more room in the waist, hips, and bust.
In terms of actual measurements, a size 14W in plus-size clothing is usually larger in key areas than a juniors size 15. This is why understanding how sizing is structured—and how it fits your unique body—is so important.
Is 2X the Same as XXL?
This is one of the most common sizing questions, and the answer is: No, 2X and XXL are not the same.
- XXL: Typically part of the straight-size range and follows the same proportions as smaller sizes (XS, S, M, L, XL). It’s essentially the next step up from XL, often corresponding to a size 18 or 20.
- 2X: Part of the plus-size range, which is designed with curvier proportions in mind. It’s usually larger than XXL, with more room in areas like the bust, waist, and hips.
For example, at Undersummers:
- XXL may fit someone who wears size 18-20 in straight sizes.
- 2X is specifically tailored for plus-size bodies, often accommodating measurements for sizes 20-22 or even larger, depending on the garment.
Is XXL a Size 16?
Not quite. XXL typically corresponds to a size 18 or 20 in misses or straight sizing. Size 16 is more commonly associated with XL. However, sizing can vary widely between brands, so it’s always a good idea to check the specific size chart for the brand you’re shopping with.
At Undersummers, for instance, our size charts clearly define the measurements for each size, so there’s no guessing involved. We believe in making sizing as transparent and straightforward as possible.
Why Do Sizes Vary Between Brands?
Here’s the frustrating truth: there’s no universal standard for sizing. Each brand develops its own sizing guidelines based on the target customer, the fit model they use during design, and the style of the garment. That’s why you might be a size 12 at one store and a size 16 at another.
At Undersummers, we’ve created a size chart based on real women’s measurements, not outdated industry standards. We test our garments on a variety of body types to ensure they fit and flatter women of all shapes and sizes.
Measurements Are Key to Finding the Right Size
Because sizing varies so much, the best way to determine your size is by using measurements. Most brands, including Undersummers, provide a size chart that includes bust, waist, and hip measurements. By comparing your own measurements to the chart, you can find the size that’s most likely to fit.
Here are some tips for measuring yourself:
- Bust: Measure around the fullest part of your bust, keeping the tape measure level.
- Waist: Measure around the narrowest part of your waist, usually just above your belly button.
- Hips: Measure around the fullest part of your hips, keeping the tape measure straight across.
When shopping online, always refer to the brand’s size chart. If you’re between sizes, consider the garment’s style and fit. For example:
- If the garment is stretchy, you might size down for a snug fit.
- If it’s structured or doesn’t stretch, sizing up might be more comfortable.
How Undersummers Approaches Sizing
At Undersummers, we know that no two women are exactly alike, and we celebrate that diversity with our size-inclusive designs. Here’s what makes our sizing unique:
- Extended Size Range: We offer sizes XS through 5X, ensuring that every woman can find a size that works for her.
- Real Women, Real Fit: Our designs are tested on a variety of body types to ensure they fit and flatter real women—not just fit models.
- Transparent Size Charts: We provide detailed measurements for each size, so you know exactly what to expect.
- Tailored for Curves: Our plus-size garments are designed with curvier proportions in mind, ensuring a comfortable and flattering fit.
Whether you’re shopping for our signature anti-chafe shorts or a stylish dress, you can trust that our sizing is consistent, inclusive, and designed to make you feel amazing.
Final Thoughts
Sizing can feel like a mystery, but it doesn’t have to be. While terms like “plus-size,” “XXL,” and “2X” can be confusing, the key is to focus on your measurements and how a garment fits your unique body. At the end of the day, sizes are just numbers—they don’t define your worth, beauty, or confidence.
At Undersummers, we’re here to make sizing simple, transparent, and empowering. Our mission is to create clothing that fits and flatters every body, so you can focus on feeling comfortable and confident—not on deciphering size charts.
If you’re ever unsure about what size to choose, don’t hesitate to reach out to us. We’re always happy to help you find the perfect fit.
With love,
CarrieRae
Designer and Founder, Undersummers
