High Performance Signature Style: How What You Wear Affects Your Work

Most people think clothing is about appearance. High performers know it’s about performance and perception. It affects how you think and how others respond to you. 

Your signature style is not a fashion statement. It’s a performance strategy. A signature style isn't designed to impress others. It's about becoming the version of yourself who feels, thinks and performs at your best. 

Discover how science-backed clothing choices can elevate the confidence, credibility and leadership you bring to your personal brand.

1. Enclothed Cognition: The Symbolic Meaning of Clothing 

As I shared in my earlier blog, Science meets style for your personal brand: The upside of dressing up for work, what you wear doesn’t just influence how others perceive you; it influences you - how you think, feel and perform. 

‘Enclothed Cognition’ is a term coined by psychologists Hajo Adam and Adam Galinsky of Northwestern University. In their research, participants donned identical white coats described as either a doctor’s coat or a painter’s coat. Those who were told it was a doctor’s coat performed significantly better on attention-related tasks than those who were told they were wearing a painter’s coat.  

The research concluded that the symbolic meaning of clothes activates associated mental processes. So the next time you choose your outfit, ask yourself if you're representing the personal brand you most want to embody? For example, are you the: 

• The Creative Director: e.g. Virgil Abloh

• The CEO: e.g. Anna Wintour

• The Trusted Advisor: e.g. Steven Bartlett 

• The Performer: e.g. Taylor Swift

• The Visionary: e.g. Steve Jobs

For ideas on how to define your own sense of personal style, see my earlier blog, Level up your visual brand: Creating a signature visual style identity for your personal brand.

2. When in Doubt, Go Dark

As I shared in an earlier blog, The Dark Colour Advantage: How wearing black and navy builds your authority, opting for darker shades could be the subtle high-performance strategy for your personal style. 

The significance of dark colours has long been embedded in social and cultural associations. Historically, black and navy clothing was reserved for the elite. Not just for fashion reasons, but for practical and symbolic ones too. In the Middle Ages, black dye was rare and expensive. Rich blacks required layers of dyeing, making it a sign of wealth. Hence, the European aristocracy wore black to display status. Judges, priests and scholars - roles often associated with leadership - also wore black to represent impartiality, wisdom and power. 

Later, the Navy, police force and security would often opt for navy blue. Through colour conditioning, dark colours became a visual shorthand for competence, discipline and control

Psychologists have studied in-depth how colour psychology influences perceptions. Research suggests darker colours are often associated with perceptions of authority, professionalism and competence. Navy consistently scores well in perceptions of trust, dependability, and conservatism, which is why it’s a popular choice for many brands.

To learn more about colour psychology, see my earlier blog, Colour Decoded: How Colour Psychology Shapes Perceptions of Power and Trust.

3. Overdress for the Occasion

In 2015, Social Psychological and Personality Science published a study titled “The Cognitive Consequences of Formal Clothing”. Participants in the study dressed in either casual or formal clothing to complete tasks designed to measure abstract thinking. Those wearing more formal clothing consistently outperformed their casual counterparts in abstract thinking. 

Dressing formally is said to increase ‘social distance’. This promotes broader and higher-level thinking, much like the type required in leadership, long-term planning and innovation.

The Journal of Fashion Marketing and Management also published a study in 2013 titled “The influence of clothing on first impressions: Rapid and positive responses to minor changes in clothing formality”.  The researchers investigated how a subtle shift in clothing formality influenced perceptions of a person’s:

• Trustworthiness

• Competence

• Authoritativeness

• Approachability

• Credibility

To explore this, participants viewed photos of the same person in slightly different outfits, e.g. with or without a jacket, shirt tucked or untucked, and were asked to rate them based on these traits.

Even the slight differences in clothing details, such as adding a blazer or switching to a more structured silhouette, made a significant impact on how the individual was perceived. The person who dressed more formally, was rated as more competent, trustworthy and confident and better suited to leadership. And judgments were made within milliseconds, asserting the power of instant visual cues in a professional personal brand.

4. Status Signals 

While I don’t believe in seeking self-validation from status symbols, or buying brands to impress others, signalling identity in other ways is a more interesting discussion. This has proven to be particularly true for perceptions and performance, particularly in negotiation style settings. 

A study titled “Dress for Success: Clothing Influences Self-Perception and Negotiation Outcomes”, published in the Journal of Experimental Psychology General in 2014, investigated how status-signalling clothing affects social perceptions, plus actual behavioural outcomes in negotiation settings.

The male participants were assigned either casual attire (sweats), neutral attire, or business attire (suit and tie). They were then asked to engage in mock negotiations, structured to test assertiveness and dominance behaviours.

Those wearing formal/business attire were consistently rated as of a higher status, more competent and more persuasive by both participants and observers. Participants in suits also negotiated more successfully, demanded higher value, and were less likely to make unnecessary concessions. High-status dressers also displayed more dominant body language, had lower heart rates, and exhibited greater internal control, all of which contributed to their edge in performance.

So when the stakes are high for credibility and perceptions of performance, opt for the suit.

Style with Substance

Your signature style is more than what you wear; it’s how you show up.

The goal isn’t to dress for approval; it’s to create alignment between who you are, how you feel and the personal brand you want to embody. Because high performance isn’t just about what you do. It’s about the confidence, credibility and presence you bring to how you do it.