A white tank, low-rise jeans, black ballet flats and a slouchy shoulder bag are the foundation. Lululemon's white ribbed tank, Róhe's blue low-rise Rixt jeans, Loeffler Randall's black studded Landon flats and Bottega Veneta's brown Intrecciato Gemellini bag are an easy place to start.

Low-rise straight jeans with a crisp white shirt is the most classic off-duty look. SLVRLAKE's Isabel jeans and R13's asymmetric white poplin shirt make the base, and Roxanne First's gold Polka-Dot Drop hoops add polish. Stella McCartney's brown croc-effect pumps give it a little height.

A light trench makes anything look pulled together. Victoria Beckham's taupe Philippa trench over Alessandra Rich's purple silk midi skirt is a pretty colour pairing. Jacquemus' neutral raffia-effect sandals and The Row's black Park tote keep it easy.

The off-duty version of a little black dress is simple and unfussy. Self-Portrait's gathered taffeta mini and Khaite's ruched chiffon Perry midi are both easy to dress up or down. Isabel Marant's black suede Malvin mules and Saint Laurent's black Niki shoulder bag keep it casual.

A satin slip dress with a printed scarf is the evening version. Dries Van Noten's black draped satin midi works with Alix of Bohemia's printed silk pareo tied at the shoulders or waist. Jacques Marie Mage's tortoiseshell Jennie sunglasses and Khaite's black Sadie sandals finish it.

Off-duty style looks simple, but it works because every piece fits well. If you take one thing away, let it be that great basics beat trend pieces, so spend your time finding jeans, a white shirt and a trench that truly fit. Low-rise jeans are back, but a mid-rise pair works just as well if you prefer it. Keep jewelry to small hoops and carry one good bag. We would skip loud graphic prints, which work against the understated feel. A slip dress and a little black dress can both be dressed down with flats and dressed up with sandals.