HELLESSY

What: Five-year-old American sportswear label founded by French/Japanese designer Sylvie Millstein, who was previously a buyer at Chanel and Harrods.

Why: It’s your new go-to name if you’re into pared-back, fluid essentials that are sexy, sophisticated and modern. (Melania Trump-types would wear this – if they were cool.) Millstein has a rep for giving streamlined American sportswear a touch of French sensuality, showing a sliver of skin (typically the shoulders or collarbone) with slinky draped tops and dresses season after season.