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Men Suits

Shop men’s suits at SIRRI, including formal suits, slim fit suits, tailored fit suits, wedding suits, business suits, tweed suits, check suits, linen suits and tuxedo styles. Find smart suits for weddings, work, parties, proms, race days and special occasions.

Use the filters to select by colour, size, fit, style, fabric and designer to find the right men’s suit for your occasion.

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251 products

Men’s Premium Twill 3-Piece Suit - Cavani Donatella Sage GreenMen’s Premium Twill 3-Piece Suit - Cavani Donatella Sage Green
Men’s 3-Piece Slim Fit Formal Suit - Cavani Malibu Forest GreenMen’s 3-Piece Slim Fit Formal Suit - Cavani Malibu Forest Green
Men’s 3-Piece Beige Textured Suit - Cavani Camden BeigeMen’s 3-Piece Beige Textured Suit - Cavani Camden Beige
Men’s 3-Piece Wool Slim Fit Formal Suit - Cavani James Marine BlueMen’s 3-Piece Wool Slim Fit Formal Suit - Cavani James Marine Blue
Men’s Wool 3-Piece Slim Fit Formal Suit - Cavani Bond HazelMen’s Wool 3-Piece Slim Fit Formal Suit - Cavani Bond Hazel
Men’s Wool 3-Piece Slim Fit Formal Suit - Cavani Bond AuburnMen’s Wool 3-Piece Slim Fit Formal Suit - Cavani Bond Auburn
Men’s 2-Piece Shawl Lapel Tuxedo Dinner Suit - Robert Simon WILLIAM NAVY BLUEMen’s 2-Piece Shawl Lapel Tuxedo Dinner Suit - Robert Simon WILLIAM NAVY BLUE
Men’s 4-Piece Cotton Blend Jacquard Tuxedo Suit with Double Breasted Waistcoat - Vincent -Green Main PictureMen’s 4-Piece Cotton Blend Jacquard Tuxedo Suit with Double Breasted Waistcoat - Vincent -Green Front Picture
Men’s 3-Piece Formal Suit with Double Breasted Waistcoat - Robert Simon Roman BlueMen’s 3-Piece Formal Suit with Double Breasted Waistcoat - Robert Simon Roman Blue
Men’s 3-Piece Glen Check Suit - Parker - Stone Grey Model PictureMen’s 3-Piece Glen Check Suit - Parker - Stone Grey Front Picture
Men’s 2-Piece Cotton Corduroy Formal Suit - Robert Simon Dawson BlueMen’s 2-Piece Cotton Corduroy Formal Suit - Robert Simon Dawson Blue
Save £60.00Men's Cotton Blend Self Patterned Suit - GIOVANNI Navy Model PictureMen's Cotton Blend Self Patterned Suit - GIOVANNI Navy Model Froint Picture
Save £60.03Men’s 3-Piece Tweed Like Glen Check Suit -  Robert Simon Luis BeigeMen’s 3-Piece Tweed Like Glen Check Suit -  Robert Simon Luis Beige
Men’s 3-Piece Herringbone Formal Suit - Cavani Damon Sage GreenMen’s 3-Piece Herringbone Formal Suit - Cavani Damon Sage Green
Men’s 3-Piece Herringbone Suit with Double Breasted Waistcoat - Cavani Damon Sage GreenMen’s 3-Piece Herringbone Suit with Double Breasted Waistcoat - Cavani Damon Sage Green
Men’s 2-Piece Cotton Blend Casual Suit - Columbus - Taupe Grey Model PictureMen’s 2-Piece Cotton Blend Casual Suit - Columbus - Taupe Grey Modle Front Picture
Men’s 3-Piece Wool Herringbone Tweed Suit - Cavani Thomas Pearl GreyMen’s 3-Piece Wool Herringbone Tweed Suit - Thomas - Pearl Grey Modle Front Picture
Men’s 3-Piece Wool Herringbone Tweed Suit - Cavani Thomas Savoy GreyMen’s 3-Piece Wool Herringbone Tweed Suit - Thomas - Savoy Grey Model Picture
Men's Tweed Check Slim Fit Grey Suit - Robert Simon ANDREW GreyMen's Tweed Check Slim Fit Grey Suit - Robert Simon ANDREW Grey
Men's Windowpane Check Slim Fit Suit - Robert Simon LEVI BlueMen's Windowpane Check Slim Fit Suit - Robert Simon LEVI Blue
Men's Slim Fit Suit - Robert Simon ISAAC Navy BlueMen's Slim Fit Suit - Robert Simon ISAAC Navy Blue
Men’s 3-Piece Navy Windowpane Check Suit with Double Breasted Waistcoat - Torino Model PictureMen’s 3-Piece Navy Windowpane Check Suit with Double Breasted Waistcoat - Torino Model Front Picture
Men’s 3-Piece Wool Slim Fit Formal Suit - Cavani James SierraMen’s 3-Piece Wool Slim Fit Formal Suit - Cavani James Sierra
Men’s 3-Piece Wool Slim Fit Formal Suit - Cavani James Navy BlueMen’s 3-Piece Wool Slim Fit Formal Suit - Cavani James Navy Blue
Men’s 3 Piece Black Wool Pinstripe Suit - Cavani Roberto BlackMen’s 3 Piece Black Wool Pinstripe Suit - Cavani Roberto Black
Save £74.03Men's Tailored Fit Plaid 2PC Formal Suit -  Paul Andrew Kurt Sage GreenMen's Tailored Fit Plaid 2PC Formal Suit -  Paul Andrew Kurt Sage Green
Men’s Wool Blend Double-Breasted Suit – Cavani BOND Charcoal GreyMen’s Wool Blend Double-Breasted Suit – Cavani BOND Charcoal Grey
Men’s Wool 3-Piece Slim Fit Formal Suit - Cavani Bond Charcoal GreyMen’s Wool 3-Piece Slim Fit Formal Suit - Cavani Bond Charcoal Grey
Save £142.97Men's Grey Herringbone Tweed Jacket and Waistcoat with Slim Fit Navy Blue Trousers - Cavani Grey & Navy BlueMen's Grey Herringbone Tweed Jacket and Waistcoat with Slim Fit Navy Blue Trousers - Cavani Grey & Navy Blue
Men’s Tweed Wool Suit - Paul Andrew OSCAR NavyMen’s Tweed Wool Suit - Paul Andrew OSCAR Navy
Men's Tailored Fit Navy Suit - Paul Andrew Parker NavyMen's Tailored Fit Navy Suit - Paul Andrew Parker Navy
Men's Slim Fit Formal Suit - Cavani MIAMI Sky BlueMen's Slim Fit Formal Suit - Cavani MIAMI Sky Blue
Men’s Wool Blend Double-breasted Suit – Cavani BOND Ocean Blue
Save £145.00Men's Self Patterned Slim Fit Suit - Robert Simon JUDE Light GreyMen's Self Patterned Slim Fit Suit - Robert Simon JUDE Light Grey
Save £55.00Men's Cotton Slim Fit Beige Suit - Robert Simon KINGSTON BeigeMen's Cotton Slim Fit Beige Suit - Robert Simon KINGSTON Beige
Save £145.00Men's Slim Fit Linen 2 Piece Suit Set - Robert Simon Navy BlueMen's Slim Fit Linen 2 Piece Suit Set - Robert Simon Navy Blue

Men’s Suits for Weddings, Work & Formal Occasions

Discover SIRRI’s collection of men’s suits, designed for weddings, work, parties, formal events, proms, race days and smart everyday dressing. From classic formal suits to slim fit, tailored fit, tweed, check, linen and tuxedo styles, this collection brings together a wide range of men’s suits for different occasions and dress codes.

Choose from timeless colours such as navy, black, grey and blue, or explore lighter shades, checks, tweed textures and seasonal styles for a more distinctive look. Whether you need a sharp suit for business, a three-piece suit for a wedding or a smart outfit for a special event, this men’s suits collection is the best place to start.

Looking for designer tailoring? Explore our House of Cavani suits, featuring contemporary three-piece suits, traditional tweed, modern checks and formal styles for weddings, business and special occasions.

Shop Men’s Suits by Style

Use this main men’s suits collection to browse the full range, or shop by style if you already know what type of suit you need.

Choosing the Right Men’s Suit

Start with the occasion. For weddings and formal events, a navy, grey or black three-piece suit is a classic choice. For business and workwear, choose a clean formal suit in a versatile colour. For summer events, linen and lighter colours can feel more seasonal, while tweed and check suits work well for autumn, winter, rustic and vintage-inspired occasions.

Fit is also important. Slim fit suits create a sharper, closer look, while tailored fit suits offer a refined shape with a little more room. If you are unsure, check the product size guide and consider how much movement and comfort you need for the event.

Complete Your Men’s Suit Outfit

A men’s suit is easiest to style when paired with the right shirt, shoes and accessories. For a wedding or formal occasion, add a waistcoat, tie, bow tie or pocket square. For work, keep the look clean with a formal shirt, smart shoes and classic accessories.

Why Choose SIRRI Men’s Suits?

  • Wide range of men’s suits for weddings, work, parties and formal occasions
  • Styles include formal, slim fit, tailored fit, tweed, check, linen and tuxedo suits
  • Classic and modern colours including navy, black, grey, blue, beige, brown and green
  • Options for grooms, groomsmen, wedding guests, businesswear and special events
  • Easy outfit building with SIRRI shirts, shoes, waistcoats, ties and accessories

Frequently Asked Questions – Men’s Suits

What types of men’s suits can I find at SIRRI?

You can shop formal suits, wedding suits, business suits, slim fit suits, tailored fit suits, tweed suits, check suits, linen suits, tuxedos and double breasted suits at SIRRI.

What colour suit should every man own?

Navy, grey and black are the most versatile suit colours. They work well for weddings, work, interviews, parties and formal occasions.

What is the difference between slim fit and tailored fit suits?

Slim fit suits are usually cut closer through the body, arms and legs. Tailored fit suits still create a smart shape but usually offer slightly more room and comfort.

Are men’s suits suitable for weddings?

Yes. Men’s suits are suitable for grooms, groomsmen, best men, fathers of the bride or groom and wedding guests. Choose the style and colour based on the dress code, season and wedding theme.

Can I wear a suit for work?

Yes. A formal or business suit is a strong choice for work, meetings, interviews and professional settings. Navy, grey, black and blue are especially versatile for businesswear.

What should I wear with a men’s suit?

Style a suit with a formal shirt, smart shoes and accessories such as a tie, bow tie, pocket square, cufflinks or waistcoat depending on the occasion.

How do I choose the right size men’s suit?

Measure your chest, waist, inside leg and height before ordering. Check the size guide on each product page, as fit can vary between slim fit, tailored fit and regular fit styles.