Wearing horizontal stripes makes a person look physically bigger
the verdict
REFUTED
the evidence says no
confidence 11/100
Contrary to the popular belief that horizontal stripes make people look bigger, visual perception studies and tests of the Helmholtz illusion show that horizontal stripes actually create a slimmer and taller appearance.
Evidence against · 3
Applying the Helmholtz illusion to fashion: horizontal stripes won't make you look fatter
2011 · cited by 51
Thompson and Mikellidou (2011) demonstrated that horizontal stripes actually make a figure appear taller and narrower rather than fatter, supporting the Helmholtz illusion.
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More against · 2
The influence of striped clothing on visual body perception: A study on pattern spacing design
2026 · cited by 1
The study by stylistic and visual perception research found that horizontally striped dresses are frequently perceived as the slimmest, contradicting the common belief.
Helmholtz Versus Haute Couture: How Horizontal Stripes and Dark Clothes Make You Look Thinner.
2021 · cited by 0
Research testing the Helmholtz illusion on human stimuli found that horizontal stripes have a thinning effect on the perceived size of the body.