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Home / Men's Suits / Men’s Three-Piece Suits

Men’s Three-Piece Suits

Nothing says style quite like a three-piece suit. Whether you're dressing for a wedding, an important event, or just want to take your everyday formalwear up a notch, Slater Menswear has the perfect fit. Our collection includes options for any occasion, from modern slim-fit cuts to tailored designs. If you prefer something traditional, a waistcoat adds the finishing touch to any look. Shop now and enjoy free standard delivery on orders over £150.

MEN'S THREE-PIECE SUITS

What is a three-piece suit?

A three-piece suit is made up of three matching parts: a blazer jacket, trousers, and a waistcoat. It’s a traditional, stylish option that works well for formal and smart-casual occasions. The waistcoat provides an extra layer of structure, creating a polished and put-together look.

How should a three-piece suit fit?

The key to a great three-piece suit is getting the right fit:

Jacket — This should sit neatly on the shoulders and allow you to move comfortably. The sleeves should end just above the wrist, revealing 1-2cm of your shirt cuffs.

Waistcoat — This should fit snugly when closed without being too tight or pulling, with the bottom button usually left undone for comfort when seated.

Trousers — These should sit at the natural waist with a slight break over the shoes.

For the best fit, visit a Slaters store, where our experts can help you find the perfect size.

When should you wear a three-piece suit?

A three-piece suit is a versatile option that’s perfect for a variety of occasions, including weddings, business meetings, formal gatherings, and smart-casual settings. Whether you’re the groom, a busy working professional or looking for a way to impress, a three-piece suit is a great choice.

How to wear a 3-piece suit

Styling a three-piece suit is simple, as the suit itself does most of the work. But the best way to accessorise depends on the occasion. For classic formal looks, pair navy, black, or charcoal three-piece suits with a white shirt, a silk tie, and polished shoes. Or, if you’re looking for a statement style, opt for a bold check or pinstripe three-piece suit to stand out on special occasions. Finish the look with a solid-colour tie and plain shoes to really let the pattern shine.

What fabric should you choose for a three-piece suit?

Three-piece suits come in a wide range of fabrics, making it easy to customise your formalwear for any occasion:

Tweed suits — A warm, textured fabric that’s perfect for cooler weather.

Linen suits — Lightweight and airy, these suits are best for summer weddings and other warm-weather events.

Poly-blend suits — A durable, budget-friendly option that’s popular for being crease-resistant and easy to maintain — great for every day wear around the office.

Can you wear a three-piece suit without a tie?

Absolutely! A three-piece suit can be worn without a tie for a more relaxed and modern look. This works particularly well for laid-back daytime weddings (or into the evening!) and business-casual settings, where you want to look smart but not too formal.

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Men’s Three-Piece Suits

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MEN'S THREE-PIECE SUITS