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Men's Blazers
Explore men's blazers and suit jackets for weddings, business, evening events and smart casual dressing. Choose from classic single-breasted jackets, double-breasted designs, dinner jackets and contemporary tailored styles that can be worn with smart trousers, chinos or jeans.
From versatile navy, black and grey blazers to distinctive checks, textured tweed, luxurious velvet and lightweight linen, SIRRI offers men's jackets for different occasions and seasons. Discover classic formalwear alongside modern statement pieces, with slim-fit and tailored options to suit your preferred look.
Shop Men's Blazers by Style
Find the right men's blazer by choosing a style, fabric or design that suits your occasion. Explore our dedicated collections, from traditional wedding jackets to distinctive patterned blazers and seasonal tailoring.
- Men's Wedding Blazers – smart jackets for grooms, groomsmen and wedding guests.
- Men's Dinner Jackets – elegant eveningwear for black-tie occasions and formal celebrations.
- Men's Velvet Blazers – richly textured jackets for parties, dinners and special events.
- Men's Check Blazers – classic and contemporary checked designs for smart dressing.
- Men's Tweed Blazers – heritage-inspired jackets with distinctive texture and character.
- Men's Wool Blazers – timeless styles suited to cooler weather and smarter occasions.
- Men's Pinstripe Blazers – refined striped designs with a traditional tailoring influence.
- Men's Patterned Blazers – statement jackets featuring distinctive patterns and details.
- Men's Linen Blazers – breathable, lightweight styles for summer and destination events.
- Men's Double-Breasted Blazers – structured jackets with an elegant overlapping front.
Choose the Right Men's Blazer
The best men's blazer depends on where you plan to wear it, the level of formality required and how you prefer your clothes to fit.
A classic single-breasted blazer is a versatile choice for business, weddings and smart casual outfits. Its clean front and traditional proportions make it easy to combine with tailored trousers or chinos.
Double-breasted blazers create a more structured, distinctive appearance and work particularly well for formal occasions. For evening events, a velvet blazer or dinner jacket can provide a dressier alternative to a conventional suit jacket.
If you want a jacket that works across several occasions, consider a navy, charcoal or grey blazer. These colours can be styled with different shirts and trousers, making them useful additions to a smart wardrobe.
Find the Right Fit and Size
A well-fitting men's blazer should sit neatly across the shoulders, fasten comfortably and allow natural movement without pulling across the chest or back.
Slim-fit blazers offer a closer-cut, modern shape, while tailored-fit jackets provide a defined appearance with room for comfortable movement. The precise fit varies by design and brand, so check the measurements and sizing information on each product page before ordering.
Pay particular attention to the shoulder width, chest measurement, sleeve length and overall jacket length. The shoulder seams should sit close to the natural edge of your shoulders, and the sleeves should finish around the wrist, allowing a small amount of shirt cuff to show when worn formally.
If you are between sizes, compare your body measurements with the individual product's size guide rather than relying on your usual jacket size alone.
Men's Wedding Blazers and Formal Jackets
A men's wedding blazer offers a smart option for grooms, groomsmen and guests who want a polished outfit without necessarily wearing a matching suit.
For traditional ceremonies, navy, grey, charcoal and black jackets provide a classic foundation. Beige, light blue and softer neutral tones can work particularly well for spring and summer weddings, while tweed and deeper colours complement autumn and winter celebrations.
For countryside or rustic weddings, consider a check or tweed blazer with tailored trousers and a coordinating waistcoat. A velvet blazer or formal dinner jacket is better suited to dressier evening receptions, particularly where the invitation specifies formal or black-tie attire.
Explore our men's wedding suits for complete matching outfits, or browse father-and-son blazers for coordinated family occasionwear.
Formal and Casual Men's Blazers
Men's blazers are not limited to weddings and formal events. The right jacket can also provide a smarter finish for office wear, dinners, celebrations and everyday occasions.
For business and professional settings, choose a plain or subtly patterned blazer in navy, grey or charcoal. Pair it with a formal shirt, tailored trousers and leather shoes for a classic, refined appearance.
For smart casual dressing, a check or textured blazer can be worn with chinos, dark jeans or an open-collar shirt. Contrasting trousers create a more relaxed look than a matching suit while maintaining a smart overall appearance.
When choosing between formal and casual jackets, consider the fabric, structure, lapel design and details. Smooth, structured jackets generally appear more formal, while textured fabrics and softer styling can work well for less formal outfits.
Colours, Fabrics and Seasonal Styles
The fabric and colour of a blazer influence both its appearance and suitability for different occasions.
Men's linen blazers are ideal for warmer weather, summer weddings and outdoor celebrations. Their lightweight character makes them a practical choice when heavier tailoring may feel uncomfortable.
Tweed and wool blazers offer traditional texture and are particularly suited to autumn and winter dressing. Herringbone, houndstooth, windowpane and check patterns introduce visual interest while retaining a smart, tailored appearance.
Velvet blazers provide a richer finish for formal dinners, Christmas parties and evening celebrations. For a more understated wardrobe, plain navy, black, grey and charcoal jackets are easy to coordinate with different trousers and accessories.
Choose the material according to the season, event and intended use, and consult the individual product details for exact fabric composition and care instructions.
How to Style a Men's Blazer
A well-chosen blazer can form the centre of several different outfits.
For a classic formal look, wear a navy or charcoal blazer with tailored trousers, a crisp white shirt and polished Oxford or brogue shoes. A tie and pocket square can provide additional coordination for weddings and professional occasions.
For a more relaxed look, pair a check or tweed jacket with chinos and a plain shirt or fine-gauge knitwear. Dark jeans can also work with less formal jackets when the dress code allows.
For evening occasions, combine a velvet blazer with dark tailored trousers and a smart shirt. Where the event calls for black tie, choose an appropriate dinner jacket with the correct formal trousers and accessories.
Complete your outfit with men's formal shirts, smart trousers, shoes, ties and pocket squares from SIRRI.
Why Shop Men's Blazers at SIRRI?
- Men's blazers for weddings, work, parties and smart casual occasions
- Single-breasted and double-breasted jacket styles
- Slim-fit and tailored-fit designs
- Tweed, wool, velvet, linen and patterned options
- Classic colours and distinctive statement jackets
- Wedding blazers and formal dinner jackets
- Individual suit jackets for mix-and-match outfits
- Coordinating shirts, trousers, shoes and accessories
- Selected father-and-son matching styles
- Free UK delivery
- Thirty-day returns
- Free UK tracked returns on eligible orders of £20 or more
- Worldwide delivery options
Men's Blazers Delivered Worldwide
Shop men's blazers and suit jackets online at SIRRI, with styles suitable for business dressing, weddings and special occasions throughout the year.
Choose from classic formal jackets, textured tweed blazers, lightweight seasonal designs and distinctive eveningwear. SIRRI offers UK and international delivery options, with convenient returns to help make ordering formalwear online easier.
Check the individual product page for sizing and availability, and review the delivery and returns information before placing your order.
Frequently Asked Questions About Men's Blazers
What is the difference between a blazer and a suit jacket?
A blazer is generally designed to be worn with separate trousers, while a suit jacket is traditionally part of a matching suit. However, many suit jackets can also be styled separately when the colour, fabric and design work well with contrasting trousers.
Can I wear a men's blazer to a wedding?
Yes. A blazer can be an excellent choice for weddings, particularly when the dress code allows separates. Navy, grey, tweed and check blazers work well for many ceremonies, while more formal evening events may require a dinner jacket or complete suit.
What colour blazer is the most versatile?
Navy is one of the most versatile choices because it coordinates with grey, beige, black and other neutral trousers. Charcoal and grey are also practical options for business and formal occasions, while black works particularly well for eveningwear.
How should a men's blazer fit?
A blazer should fit neatly across the shoulders, fasten without pulling and allow comfortable movement through the chest and arms. The sleeves should generally finish around the wrist, and the jacket length should be proportionate to your height and body shape. Always refer to the product's size guide.
Can I wear a blazer with jeans?
Yes. A blazer with dark, well-fitting jeans can create a smart casual outfit. Tweed, check and textured jackets are particularly suitable for this combination. Add a plain shirt, knitwear or smart polo and appropriate shoes for a balanced appearance.
Which men's blazer is best for summer?
Linen and other lightweight blazers are generally good choices for warm-weather dressing. Lighter colours such as beige, cream and light blue also suit summer weddings and outdoor occasions. Check the fabric composition and lining for the individual jacket.
Are velvet blazers suitable for formal occasions?
Yes. Velvet blazers are popular for evening events, festive celebrations and formal parties. For black-tie occasions, choose a velvet dinner jacket specifically designed for formal eveningwear and pair it with suitable dinner trousers and accessories.
Can I buy a blazer without matching trousers?
Yes. SIRRI's men's blazer collection includes individual jackets, allowing you to create your own outfit with existing trousers or separately purchased pieces. Check each product description to confirm exactly what is included.
Can I coordinate men's and boys' blazers?
SIRRI offers selected matching father-and-son styles that work well for weddings, family celebrations and special photographs. Browse the father-and-son collection to explore coordinated jackets and accessories.
What are the delivery and returns options for men's blazers?
SIRRI offers free UK delivery and worldwide shipping options. Orders can generally be returned within 30 days of receipt, with free UK tracked returns for eligible orders of £20 or more. Check the current delivery and returns policy for full eligibility, timescales and international arrangements.