The Duchess of Cambridge hosted runners from the Heads Together team at Kensington Palace in the lead up to Sunday's London marathon.
Kate sported a dressed-down look, teaming black skinny jeans with a new breton top.
The multi-striped sweater is by Luisa Spagnoli as identified by the small LS logo on the knit top, near Kate's left hip.
It is the Italian designer's 'Muvi' pullover (US$280) - a rib woolen knit top with scoop neck and long sleeves. It is currently available in other colours.
The Duchess added another Italian brand to her outfit, wearing her Superga 'Cotu Classic' sneakers.
Kate topped off the look with her beloved Kiki McDonough Citrine Pear Drop Earrings.