One size fits all? Not so, says Tess Holliday.

Tess Holliday has spent much of 2016 advocating for plus-size women by calling out fat-shamers, and spreading awareness of the troubles that arise while navigating social media as a plus-sized woman.

But now the model has highlighted an all too real struggle for plus-sized women in real life: the "one size fits all" bathrobes provided by hotels, gyms and spas.

In an Instagram selfie posted earlier this week, the model pointed out how amused she was by the size of a robe provided by a Californian hotel she was staying at.

Her caption said it all, "I'm so glad they had a robe my size," she wrote alongside a picture of her squeezed into the obviously too-small bathrobe, hashtagging "#onesizehardlyfitsanyone".

AMIRITE?! 🙃😂😛#onesizefitshardlyanyone A photo posted by Plus Model✖️ Mom ✖️ Feminist🎄 (@tessholliday) on Dec 21, 2016 at 11:46am PST

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Many reacted to her post by sharing their own resonating experiences with their fluffy "nemesis" and by revealing they opt to take their own robes to public places to avoid embarrassment.

One lady commented, "This exact same thing happened on my honeymoon. The best part was when the lady wanted to see if I was wearing the bigger one. LOL I was."

Another wrote, "This is the reason I hold back on so much! Silly things a fat girl has to think about before going anywhere #onesizefitsoneleg!"

Holliday has taken a trip to the San Luis Obispo-based Madonna Inn with her husband and young son for a well deserved break after topping off her professional year with her first lingerie catwalk earlier this month.

The model joined the Buzzfeed initiative of re-creating a realistic Victoria Secret show with other models of diverse ethnicities, shapes and heights.

Wearing a sheer Catherine D'Lish dressing gown she praised the event for its inclusive nature, "It's full of diversity, the way VS shows should be."

"Today what I hope to gain is a little bit of bravery. I definitely never walked a runway in my underwear ever because no one's given me an opportunity," she admitted.

"I was definitely really nervous to show my stomach because I don't really ever show this much of my stomach — especially because I have a five-and-a-half-month-old baby. But I felt like I was in good company and everyone was really supportive, so it was a really good experience."

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