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The Plus Size Fashion “Rules” We’re Leaving in 2025 (And Refusing to Take Into 2026)

Hilary MacMillan’s FW25 made-in-Canada quality for sizes XS–4X

Somewhere between the fitting room mirror and the internet comment section, plus size women were handed a rulebook chock full of “plus size fashion rules” we never asked for.

No stripes.

No color.

No skin.

No joy, apparently.

And yet, here we are. Dressed. Visible. Stylish. Still standing.

As we move toward 2026, one thing is clear. The problem was never plus size bodies. The problem was lazy fashion advice disguised as concern. So, let’s talk about the plus size fashion rules we are officially leaving in 2025, with confidence, intention, and a little side-eye.

6 Plus Size Fashion Rules We are Leaving in 2025

1. “Horizontal Stripes Make You Look Wider”

This rule refuses to die, despite having no real science behind it.

According to fashion psychologist Dr. Carolyn Mair, “There is no single garment or pattern that has a universal effect on how bodies look. Perception is influenced by context, fit, and personal confidence”

Translation? Stripes are not the issue. Poor fit and bad styling advice are.

plus size fashion rules
Striped Mock Neck Sweater Dress at Eloquii.com

Designers have echoed this sentiment for years. In an interview with Vogue, Christian Siriano put it plainly: “There’s no such thing as rules anymore. You should wear what makes you feel good”

We are leaving behind the idea that stripes do something to you instead of simply existing on you.

2. “Crop Tops Are Only for Flat Stomachs”

This one did real damage.

Style expert and author Nicolette Mason has repeatedly challenged this narrative, saying, “Bodies are not trends. If crop tops are in, then they’re in for everyone”

plus size fashion rules
Knit Off-shoulder Long Sleeve Crop Sweater at ShopCider.com

Crop tops are not about stomach size. They are about proportion, styling, and personal preference. High-waisted bottoms, longer crop lengths, layered looks. Plus size women have always known how to make trends work for their lives.

What we are leaving in 2025 is the belief that visibility requires permission.

3. “Shapewear Is Required to Look Polished”

Optional? Sure. Mandatory? Absolutely not.

Lingerie expert and journalist Cora Harrington explains it best: “Shapewear should be a choice, not a prerequisite for wearing clothes”

plus size fashion rules
MeshSmooth™ Butt-Lifting Above-Knee Short at ShapellX.com

The idea that plus size bodies need to be compressed before being acceptable is rooted in outdated beauty standards, not style. In 2026, polish looks like garments designed with structure, stretch, and intention, not forced smoothing.

Plus size shapewear is a tool, not a tax.

4. “Avoid Bold Prints and Loud Colors”

Of the various plus size fashion rules, this one is all about shrinking, disguised as advice.

Fashion historian and writer Kimberly Jenkins has spoken about how marginalized bodies are often encouraged to minimize themselves visually, noting, “Style has always been a site of resistance”

Hilary MacMillan’s FW25 Collection Is Serving Quiet Confidence and Loud Style Plus size fashion investment
Image via Hilary MacMillan’s FW25 Collection

Bold prints and color do not overwhelm plus size bodies. They celebrate them. We are leaving behind the idea that neutral equals elevated and loud equals wrong.

If you love color, wear color. If you love print, double down.

5. “Sleeveless Is Unflattering”

Uncomfortable truth? This rule exists almost entirely because of fatphobia.

As body image researcher Dr. Brené Brown reminds us, “True belonging doesn’t require you to change who you are. It requires you to be who you are”

Floral Long Vest break plus size fashion rules
Floral Long Vest at HilaryMacMillan.com

Arms are not a flaw to be managed. They are part of a body that exists in the world. Tank tops, halters, sleeveless dresses. All valid. All allowed. All normal.

We are not sweating through summers for respectability anymore.

6. “Stick to A-Line and Empire Waists”

This one is especially limiting.

Stylist Allison Bornstein explains that great style comes from understanding proportions and preference, not following body type rules: “There are no wrong clothes, only wrong expectations”

plus size fashion rules
Curve tailored wide leg wrap belted pants in black at Asos.com

Plus size women can wear bodycon, tailoring, sharp suiting, and fitted silhouettes. The key is fit, not fear.

In 2026, we dress for ourselves, not to disappear.

So, What Are We Actually Carrying Forward?

Discernment.

Joy.

Personal style over performative “flattery.”

Clothes that fit our lives, not just our bodies.

Leaving these plus size fashion rules in 2025 is not about rebellion for the sake of it. It is about autonomy. It is about choosing style from a place of confidence, not correction.

plus size fashion rules
Image via @CiderCurve Instagram

Wear the stripes.

Buy the crop top.

Skip the shapewear.

Show your arms.

Choose the bold print.

Fashion is not supposed to make you smaller. It is supposed to make you feel like yourself.

And that is a rule worth keeping.

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