SIR the Label Tailoring: Blazers, Trousers and Suits

SIR the Label tailoring is soft, slightly oversized and designed to be worn with silk rather than a shirt and tie. Blazers have shoulder pads but no stiffness, trousers are wide and balloon shaped, and almost every suit has a matching mini short and skirt. This guide covers every SIR. suit on Coveti, how each one fits, and how to wear it.

The suits

Dylan, in black and chocolate

The Dylan Blazer in Black, $930, is an oversized single breasted blazer with shoulder pads, a faux welt pocket at the chest and double flap pockets, in a smooth suiting with a hint of wool. It pairs with the Dylan Mini Short, $580. In chocolate, the Dylan Blazer and Dylan Mini Short make the same set in a warmer tone. This is the most versatile SIR. blazer: it goes over a slip dress, a tee and jeans.

Mathias, in slate

The Mathias Oversized Blazer in Slate, $970, is double breasted with shoulder pads, jet pockets and a lace panel at the cuff. The Mathias Wide Leg Trouser, $870, is high rise and pleated, with lace at the hem, and the Mathias Tailored Midi Skirt, $680, is a wrap with a wide waistband. All three are a lightweight wool suiting. The lace detail is what makes Mathias distinctly SIR.

Belle, in grey marle

The Belle suit replaces the blazer with a bomber. The Belle Bomber Jacket, $970, is oversized with concealed press snaps at the collar, and the Belle Tailored Trouser, $780, is wide and pleated with a wide waistband. The Belle Wrap Mini Skirt, $600, fits oversized, and SIR. recommends one size down.

Viona, in peach check

The Viona Short Blazer, $970, is a slim, single breasted short blazer with defined shoulders. It pairs with the Viona Tailored Pant, $830, a wide balloon leg with a pleated front and a removable narrow belt, and the Viona Mini Short, $580.

Astrine, in coffee

Astrine is the slimmest SIR. suit. The Astrine Tailored Blazer, $970, sits at the hip with slanted buttons and is designed for a slim fit. The Astrine Tailored Pant, $830, is a slim straight leg. The Astrine Tailored Mini Dress, $1,120, turns the same suiting into a structured dress with balloon sleeves, and the Astrine Mini Short, $580, completes the set.

Bronte, in beige

From Resort 2027, the Bronte Open Back Blazer, $930, is a structured viscose blazer with an open back and a toggle tie, lined in a contrast stripe. It comes with the Bronte Tailored Trouser, $720, the Bronte Belted Mini Short, $580, and the Bronte Fitted Bodice, $580.

Trousers on their own

• Rivoli Trouser in Black, $780. Wide leg and pleated, in a wool blend.
• Alizee Slim Trouser in Black, $780. A slim leg with a low rise in a midweight suiting.
• Henrik Straight Leg Trouser in Chocolate Marle, $830. Straight leg with a wide waistband, fully lined. It matches the Henrik Bomber Jacket, $970.
• Kaja Pant in Smoke, $680. A low rise cigarette leg in a velvet like fabric.

How SIR. tailoring fits

SIR. describes its tailoring as fitting true to size, but the shapes vary. Dylan, Mathias and Belle are oversized by design, so take your usual size for the intended slouch. Astrine and Viona are slim, so size up if you are between sizes and plan to wear a knit underneath. On Coveti, SIR 1 is a UK 8 and SIR 2 is a UK 10. See our SIR size guide for the full chart.

How to wear it

Wear SIR. tailoring the way the brand shoots it: with something soft underneath. A silk cami such as the Noria Cropped Cami under the Dylan blazer, a Yes SIR. Ribbed Tank, $280, under the Belle bomber, and a fine knit under the Mathias. For shoes, a loafer by day and a slim heel at night. A leather belt, such as the Odeon Leather Belt, $340, pulls an oversized blazer in at the waist. More belts are in SIR accessories.

Editor’s note: the Dylan Blazer is the SIR. piece I would buy before any dress. It makes everything else in the wardrobe look more considered.

Frequently asked questions

Does SIR the Label make suits?

Yes. SIR. makes matching blazers, trousers, skirts and mini shorts in the Dylan, Mathias, Belle, Viona, Astrine and Bronte suiting.

Are SIR blazers oversized?

Some are. The Dylan and Mathias blazers are oversized with shoulder pads, while the Astrine and Viona blazers are slim fitting.

What is the SIR Dylan Blazer made of?

The Dylan Blazer is a smooth suiting with a hint of wool, 40% wool with viscose, polyester and lycra, fully lined in polyester.

Do SIR trousers fit true to size?

Yes. SIR. describes its trousers as fitting true to size. Wide leg styles such as the Mathias and Rivoli are cut generous by design.