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THEORY

Theory is a contemporary fashion brand founded in 1997 in New York, celebrated for its minimalist, modern aesthetic. Known for its sophisticated and versatile clothing, Theory emphasises fit, craftsmanship, and innovative fabrics, offering timeless pieces that remain relevant season after season.

The brand revolutionised American women's fashion with the introduction of innovative stretch fabric in their iconic pants, enhancing comfort and performance while instilling confidence and style. With a similar philosophy for men’s fashion, Theory provides expertly tailored, highly functional clothing designed to transform the way individuals feel, work, and live.

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Mayer Trouser by Theory, crafted from medium-weight Italian virgin wool and Lycra Spandex. Features straight slim leg with subtle pressed creases, side slip pockets, back welt pockets, and hook-and-zip closure. Wrinkle-resistant and moisture-controlling fabric for all-day polish
Mayer Trouser by Theory, crafted from medium-weight Italian virgin wool and Lycra Spandex. Features straight slim leg with subtle pressed creases, side slip pockets, back welt pockets, and hook-and-zip closure. Wrinkle-resistant and moisture-controlling fabric for all-day polish
Mayer Trouser by Theory, crafted from medium-weight Italian virgin wool and Lycra Spandex. Features straight slim leg with subtle pressed creases, side slip pockets, back welt pockets, and hook-and-zip closure. Wrinkle-resistant and moisture-controlling fabric for all-day polish
Mayer Trouser by Theory, crafted from medium-weight Italian virgin wool and Lycra Spandex. Features straight slim leg with subtle pressed creases, side slip pockets, back welt pockets, and hook-and-zip closure. Wrinkle-resistant and moisture-controlling fabric for all-day polish
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  • 36
Theory
Mayer Trouser in Black Sale price$499
Colour
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Mayer Trouser in Charcoal
Mayer Trouser in Charcoal
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  • 36
Theory
Mayer Trouser in Charcoal Sale price$250 Regular price$499
Colour
Save 50%
Chambers Blazer by Theory, crafted from medium-weight Italian virgin wool and Lycra Spandex. Features structured tailoring with notch lapels, chest and flap pockets, and buttoned cuffs. Fully lined with two interior pockets, wrinkle-resistant and moisture-controlling fabric.
Chambers Blazer by Theory, crafted from medium-weight Italian virgin wool and Lycra Spandex. Features structured tailoring with notch lapels, chest and flap pockets, and buttoned cuffs. Fully lined with two interior pockets, wrinkle-resistant and moisture-controlling fabric.
Chambers Blazer by Theory, crafted from medium-weight Italian virgin wool and Lycra Spandex. Features structured tailoring with notch lapels, chest and flap pockets, and buttoned cuffs. Fully lined with two interior pockets, wrinkle-resistant and moisture-controlling fabric.
Chambers Blazer by Theory, crafted from medium-weight Italian virgin wool and Lycra Spandex. Features structured tailoring with notch lapels, chest and flap pockets, and buttoned cuffs. Fully lined with two interior pockets, wrinkle-resistant and moisture-controlling fabric.
  • 38
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Theory
Chambers Blazer in Charcoal Sale price$550 Regular price$1,099
Colour
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Short Sleeve Knitted Tee in White Multi
Short Sleeve Knitted Tee in White Multi
Short Sleeve Knitted Tee in White Multi
Short Sleeve Knitted Tee in White Multi
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Theory
Short Sleeve Knitted Tee in White Multi Sale price$175 Regular price$349
Colour
Camp Collar Shirt in Chino
Camp Collar Shirt in Chino
Camp Collar Shirt in Chino
Camp Collar Shirt in Chino
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  • XXL
Theory
Camp Collar Shirt in Chino Sale price$399
Colour
Camp Collar Shirt in Baltic
Camp Collar Shirt in Baltic
Camp Collar Shirt in Baltic
Camp Collar Shirt in Baltic
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  • XXL
Theory
Camp Collar Shirt in Baltic Sale price$399
Colour
Chambers Blazer by Theory, crafted from luxurious Italian virgin wool and Lycra Spandex. Features a structured fit, classic notch lapels, chest and flap pockets, and buttoned cuffs. Fully lined, wrinkle-resistant, and moisture-controlling fabric, perfect for both professional and casual wear
Chambers Blazer by Theory, crafted from luxurious Italian virgin wool and Lycra Spandex. Features a structured fit, classic notch lapels, chest and flap pockets, and buttoned cuffs. Fully lined, wrinkle-resistant, and moisture-controlling fabric, perfect for both professional and casual wear
Chambers Blazer by Theory, crafted from luxurious Italian virgin wool and Lycra Spandex. Features a structured fit, classic notch lapels, chest and flap pockets, and buttoned cuffs. Fully lined, wrinkle-resistant, and moisture-controlling fabric, perfect for both professional and casual wear
Chambers Blazer by Theory, crafted from luxurious Italian virgin wool and Lycra Spandex. Features a structured fit, classic notch lapels, chest and flap pockets, and buttoned cuffs. Fully lined, wrinkle-resistant, and moisture-controlling fabric, perfect for both professional and casual wear
  • 38
  • 40
  • 42
  • 44
  • 46
  • 48
Theory
Chambers Blazer in Black Sale price$1,099
Colour
Save 50%
Men's Theory Sand Melange Woven Jacket, offering a sleek design, comfortable fit, and sophisticated style.
Men's Theory Sand Melange Woven Jacket, offering a sleek design, comfortable fit, and sophisticated style.
Men's Theory Sand Melange Woven Jacket, offering a sleek design, comfortable fit, and sophisticated style.
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Theory
Mens Woven Jacket in Sand Melange Sale price$550 Regular price$1,099
Colour
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Mens Woven Pants in Sand Melange
Mens Woven Pants in Sand Melange
Mens Woven Pants in Sand Melange
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Theory
Mens Woven Pants in Sand Melange Sale price$250 Regular price$499
Colour
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Curtis Short in Space
Curtis Short in Space
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Theory
Curtis Short in Space Sale price$150 Regular price$299
Colour
Save 50%Curtis Pants in Sargasso
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Theory
Curtis Pants in Sargasso Sale price$200 Regular price$399
Colour
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Curtis Pants in Plush
Curtis Pants in Plush
Curtis Pants in Plush
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  • XL
Theory
Curtis Pants in Plush Sale price$200 Regular price$399
Colour
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Men’s short-sleeve linen cotton blend shirt with spread collar and button-front closure, lightweight Italian knit.
Men’s Theory short-sleeve linen cotton blend shirt with spread collar and button-front closure, lightweight Italian knit.
Men’s Theory short-sleeve linen cotton blend shirt with spread collar and button-front closure, lightweight Italian knit.
Men’s Theory short-sleeve linen cotton blend shirt with spread collar and button-front closure, lightweight Italian knit.
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Theory
Short Sleeve Button Down Shirt in Orchard Sale price$200 Regular price$399
Colour
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Brenan Knitted Polo in Orchard
Brenan Knitted Polo in Orchard
Brenan Knitted Polo in Orchard
Brenan Knitted Polo in Orchard
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  • XL
  • XXL
Theory
Brenan Knitted Polo in Orchard Sale price$175 Regular price$349
Colour
Save 50%
Curtis Drawstring Pant in Smoke
Curtis Drawstring Pant in Smoke
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Theory
Curtis Drawstring Pant in Smoke Sale price$200 Regular price$399
Colour

EXPRESS SHIPPING

Fast, secure delivery Australia-wide.

FREE RETURNS

Free returns and exchanges for Australian customers.

GIFT WRAPPING

Complimentary gift wrapping.

PERSONAL STYLING SESSIONS

Our stylists will work with you to ensure you feel comfortable, confident and inspired.