SIR Guillaume pinstripe pants

Name: SIR Guillaume pinstripe pants
Brand: SIR
Price: 276.00 USD
Availability: InStock

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Product Insights & Style Tips

The SIR Guillaume pinstripe pants redefine understated elegance with a luxurious blend of polyester and viscose, touched by a hint of stretch for that perfect drape. The deep plum pinstripe injects a modern twist into classic tailoring, merging business-savvy style with a flair for the after-hours. These trousers bring a smooth finish that flatters the form while remaining effortlessly chic, truly encapsulating a mood of sophisticated ease.

As you move, the Guillaume pants reveal their versatility—sitting comfortably at the waist with the added adaptability of belt loops. Sleek side slit pockets and a refined welt pocket offer both practicality and polish. The fabric glides with each step, accommodating body contours without constriction, making them equally suitable for a power brunch or a sophisticated dinner. Layer them with a crisp button-down and a blazer, or transition into the evening with a silk cami; these pants gracefully navigate a variety of sophisticated settings.

Materials / Fabrication

Luxurious blend of polyester and viscose with a hint of stretch
Rich plum pinstripe
Sleek side slit pockets
Refined welt pocket
Versatile belt loops

Recommended Care

Machine wash cold with like colors on a gentle cycle.
Use a mild detergent to maintain fabric integrity.
Hang to dry or tumble dry low to avoid shrinkage.
Cool iron if needed to smooth out wrinkles.
Avoid bleach to preserve color.

Lookbooks

SIR the Label Shapes a New Summer Attitude Through Tropicana

Tropicana Summer from SIR the Label feels like a warm breath rushing in from somewhere tropical and slow paced. The campaign sits in that sweet space where ease meets intention. Jennifer Stenglein photographs Anna and Latahlia in a way that turns every scene into a soft daydream. You see slip dresses drifting around the body and swim sets that hold a simple confidence that SIR has shaped since its early days. The mood lands somewhere between a sun drenched afternoon and the kind of evening that never seems to end.

SIR The Label Notturno Campaign Embraces Italian Quietude with a Cinematic Edge

SIR The Label’s Notturno campaign takes a slower, more intimate approach to summer style. Photographed around dreamy Lake Como, the collection is shaped by its surroundings—elegant architecture, quiet courtyards, and light that lingers long past sunset. This is a wardrobe built for personal rituals, reflective moments, and evenings that unfold on their own terms.

Christian Siriano and Heidi Klum Redefine Glamour for Resort 2026

Christian Siriano’s Resort 2026 is more than just a tribute to his longtime muse Heidi Klum—it’s a visual diary of their shared history and the fearless confidence Klum radiates. Siriano didn’t just design looks for the runway; he stitched together chapters of Klum’s life, from full-throttle glamour to off-duty rock chic. The result? A lineup that feels like a high-octane style autobiography, where tailored blazers and liquid-metallic minis speak just as loudly as the stories behind them.

About SIR

SIR The Label is an Australian fashion label with a sustainable background. The cult Australian fashion label was founded by Sophie Coote and Nikkie Campell in 2014, delivering socially conscious minimalism with a free-spirited edge since its inception. Think 70’s, 80’s inspired silhouettes with a beachy aesthetic that can be worn whether you’re beach side or hitting the town. Shop the latest collection from SIR The Label, ranging in dresses, shirts, skirts, pants and swimwear.