long sleeve cocktail midi dress TA3 Notchy - Contour Black/Oat - L hugging skirt that finishes at a midi hem Emery Sequin Dress L /

embellished flats or sharp lace-up oxfords could be appropriate options, too. Emily Post Institute offers a similar definition: A black tie optional dress code gives guests a couple of formal options to choose from

ASOS offers a plethora of coveted brands catering to every style and budget, from high-street favourites like Topshop and River Island, including its own ASOS Design and ASOS Edition brands

You can't go wrong with a pair of khaki pants or chinos

Whistles Whistles designs timeless, elegant and modern bridesmaid dresses that suit every style of wedding from classic stately home weddings to more casual, low-key affairs

It means you have the option to go with traditional black tie menswear, but you could also step down to a formal-appropriate suit without being out of place

Both dress and bonnet are trimmed with cotton lace and nylon organdy embroidered trim