When a wedding invite reads “black tie”, take a deep breath (and maybe a celebratory sip), because this dress code isn’t cause for panic – it’s an excuse to go all out. Those two little words might sound intimidating, but really, they translate to one simple idea – go long (see ’s definitive guide for black-tie dressing if you need any more guidance). In other words, it’s time to bring out the floor-sweeping gowns you rarely get to wear.

Shop top black-tie wedding guest dresses:

Best velvet dress

Boden Draped Sleeve Velvet Dress

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Best draped dress

Reiss Atelier One-Shoulder Maxi Dress

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Best structured black dress

Solace London Pieta Off-The-Shoulder Twill Gown

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Picking the right fabric is crucial when it comes to winter wedding guest dresses, with plush velvet, lustrous satin and heavier silks all lending themselves to the season. Think rich textures, embellishment and detailing that catch the light after dark. For black-tie celebrations, the cape dress is a particularly elegant option, which also benefits from an extra layer of fabric to drape over exposed arms. Long sleeves and high necklines are also worth considering for cooler nights.

Colour, too, takes on a different mood in autumn/winter. Rather than summer’s pastel hues and brights, look to jewel tones, deep burgundy, forest green and midnight blue, alongside rich chocolate brown and classic black. The latter is absolutely fair game for wedding guests (here’s why), particularly in glossy satin or velvet, or enlivened with a playful print. Polka dots can feel just as chic in winter as they do in summer, while a subtle shimmer or metallic finish brings a welcome touch of festive glamour to evening nuptials.

So, save the mini for your next cocktail soirée and show up like you’ve understood the assignment. Below, find the -approved black-tie wedding guest dresses.

Shop ’s edit of the best black-tie wedding guest dresses