A bearded man wears marcdarcys KELLY black single-breasted waistcoat over a white shirt and black tie, with a red pocket square for flair. His hands rest in the pockets of slim-fit plaid trousers against an understated light backdrop, enhancing his polished formalwear look.
A man faces away, wearing a marcdarcy KELLY waistcoat in deep red with paisley patterns and black sides over a white shirt. His dark slicked-back hair adds to his slim-fit, patterned pants with buttoned pockets, all set against a plain light backdrop that highlights his formal attire.
A man poses against a plain background, wearing formal attire: a slim fit white shirt, marcdarcys KELLY Black Single Breasted Waistcoat with a red pocket square, black tie, and grey checkered trousers. Sleek black shoes complete his stylish ensemble.
A man wearing a marcdarcy KELLY black single-breasted waistcoat over a white dress shirt with a textured black tie and a red pocket square, adding flair to the formal ensemble. The background is plain light in color.
A bearded man epitomizes elegance in a slim-fit white shirt, marcdarcy’s KELLY Black Single Breasted Waistcoat, tie, red pocket square, and plaid pants. With hands in pockets against a light gray background, his style is impeccable formalwear.
A man faces away from the camera, wearing a white shirt and slim-fit gray trousers with brown shoes. He sports a KELLY - Black Single Breasted Waistcoat by marcdarcy, against a plain white background, accentuated by his short dark hair.
A bearded man wears marcdarcys KELLY black single-breasted waistcoat over a white shirt and black tie, with a red pocket square for flair. His hands rest in the pockets of slim-fit plaid trousers against an understated light backdrop, enhancing his polished formalwear look.
A man faces away, wearing a marcdarcy KELLY waistcoat in deep red with paisley patterns and black sides over a white shirt. His dark slicked-back hair adds to his slim-fit, patterned pants with buttoned pockets, all set against a plain light backdrop that highlights his formal attire.
A man poses against a plain background, wearing formal attire: a slim fit white shirt, marcdarcys KELLY Black Single Breasted Waistcoat with a red pocket square, black tie, and grey checkered trousers. Sleek black shoes complete his stylish ensemble.
A man wearing a marcdarcy KELLY black single-breasted waistcoat over a white dress shirt with a textured black tie and a red pocket square, adding flair to the formal ensemble. The background is plain light in color.
A bearded man epitomizes elegance in a slim-fit white shirt, marcdarcy’s KELLY Black Single Breasted Waistcoat, tie, red pocket square, and plaid pants. With hands in pockets against a light gray background, his style is impeccable formalwear.
A man faces away from the camera, wearing a white shirt and slim-fit gray trousers with brown shoes. He sports a KELLY - Black Single Breasted Waistcoat by marcdarcy, against a plain white background, accentuated by his short dark hair.

KELLY - Black Single Breasted Waistcoat

£48.99 £19.99 Save 59%
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The definition of a wardrobe staple, this Kelly waistcoat will work into your formalwear wardrobe with ease. Its simple design allows for versatility and fuss-free styling, ideal for layering under a tux or as a mix and match piece. Finished off with a wine pocket square to add personality, you can't go wrong.

Model wears size 40R. 

Features

  • Slim fit
  • Single-breasted
  • Five button fastening
  • Complimentary pocket square
  • Button strap adjuster

Style Tip | Go for a polished look by layering on top of a pin bar shirt and under the Simon blazer. 

Composition

70% Polyester, 30% Viscose

Wash & Care

Dry clean only

⛟ Delivery
Orders are dispatched Monday - Friday (excl. UK bank holidays).
For UK delivery we offer a free standard shipping option or a paid next day option (UK mainland only, please check T&Cs for Scottish Highlands and Isles).
All deliveries are sent on a tracked service. 
To see full delivery details and international rates please click here.

⏎ Returns
If you wish to return any goods they must be returned within 14 days of receipt for a refund or an exchange.
For more info on our returns policy please click here.

What's my suit size?

All Marc Darcy suits are labelled in UK sizing, this is based on your chest and waist measurement in inches. For example, if your chest measures 40 inches then you should be a size 40. Similarly, if your waist measurement is 34 inches, you should be a 34 trouser. If you are between sizes, we recommend rounding up.

For more help on measuring your size, see our handy guide here, and see all sizing guides here. 

How long are the trousers?

 All trousers marked "R" or not followed by a letter are a regular length of 31 inches for the inside leg length. Most trousers are only available in this regular length, however all trousers can be easily taken up, with about an inch of fabric that could also be let down.

If given the option on the sizing choices, an "S" means the trouser has an inside leg length of 29 inches, and an "L" means the trouser has an inside leg length of 33 inches.

To see the trouser options available in long and short click here. 

What fit are Marc Darcy suits?

All Marc Darcy suits are cut to a slim fit, this creates a more tailored silhouette that is flattering on most body types. A slim fit follows the shape of the body, tapering at the ankle and slightly cinching the waist. This allows for a stylish look while still being comfortable and wearable.

Why are the pockets stitched closed on a waistcoat?

Whilst the pockets can be un-stitched in order to hold a pocket watch or something very light, we would recommend that they be left stitched up, since the pockets are unfinished. They are not lined and not designed to be functional.

What if my suit doesn't fit me?

If your garments aren't the right fit for you, you have 14 days to return them for a refund or to exchange for a different size. Marc Darcy cannot offer any alterations. For minor adjustments, such as requiring a shorter leg length, we recommend a local tailor. Click here to learn more about our return & exchange policy.

Do you offer free delivery?

For orders to the UK we offer the option of free delivery on all orders. Delivery will typically take between 1-5 working days. If you require an express delivery, please choose the next day option at the checkout. For all orders outside of the UK a delivery fee will be charged.

For more FAQ's please click here.

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