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Theory
Basic Regal Wool T-shirt - Brown
A$317 A$156 (50% off)
Rue La La
Theory
Essential T-shirt - Blue
A$123 A$60 (50% off)
Rue La La
Theory
Milan T-shirt - Blue
A$162 A$78 (50% off)
Rue La La
Theory
Ove Surf Terry T-shirt - Yellow
A$188 A$75 (60% off)
Rue La La
Theory
T-shirt - Red
A$122 A$87 (25% off)
YOOX
Theory
Basic Regal Wool T-shirt - Pink
A$317 A$156 (50% off)
Rue La La
Theory
Essential T-shirt - Brown
A$123 A$43 (65% off)
Rue La La
Theory
Sharp Slub Textured Stripe Henley - Blue
A$200 A$60 (70% off)
Bloomingdale's
Theory
Casey Blocked Gradient Tee - White
A$131 A$79 (40% off)
Bloomingdale's
Theory
Cosmos Slub Cotton Essential Tee - Natural
A$104 A$83 (20% off)
Bloomingdale's
Theory
T-shirt - Grey
A$90 A$66 (25% off)
YOOX
Theory
T-shirt - Yellow
A$162 A$78 (50% off)
Rue La La
Theory
Gethin Contrast Pocket Tee - Blue
A$228 A$135 (40% off)
Bloomingdale's
Theory
Ryder T-shirt - Red
A$188 A$75 (60% off)
Rue La La
Theory
Gamma Jacquard Clean Tee - Blue
A$118 A$71 (40% off)
Bloomingdale's
Theory
Men's Arlee Henley - White - Size S
A$130 A$55 (55% off)
Saks OFF 5TH
Theory
Men's Clean T-shirt - Black - Size Xl
A$130 A$69 (45% off)
Saks OFF 5TH

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Update your closet today with Theory. Shop all the latest designer t-shirts in our selection. Available in a wide range of colors and styles, these t-shirts are designed to last. Look to Theory's range of t-shirts for a simple way to lift your outfit. Effortlessly cool and well-crafted – Theory's t-shirts deserve a place in every wardrobe. Cotton t-shirts need to be cared for properly to ensure they stay looking their best. To keep cotton looking its best we would advise following the instructions on the label carefully to ensure the longevity of each cotton piece. Cotton is not only comfortable, but easy to care for too. It’s simple to care for too, and most pieces can be washed in the machine at 30°C unless specified otherwise on the care label. If the cotton item is coloured, turn inside out before cleaning. Once washed, gently stretch garments back into shape and always air dry flat away from direct heat. Discover our selection of men's designer clothing from Theory to find your perfect look.