The writer and socialite was seen laden down with bags from the upmarket supermarket chain, who she joined as a columnist in March, as she shopped in West London.
No doubt the tennis fan was stocking up on strawberries and cream in advance of the Wimbledon championship, which begins today.
The 29-year-old wore a coral cashmere dress and cardigan combination by London label Cashmere by Tania.
Although the twinset was unfortunately ageing on sporty young Pippa as she made a dash to the supermarket the £265 Trixiebelle bodycon dress is described by the company as exuding 'true feminine elegancy ... perfect for a dressed-up dinner.'
The online description continues: 'This simple and elegant short sleeved dress, binds into the waist with a combination of cashmere and silk to enhance on the figure for that perfect looking body.'
The matching £235 cardigan is described as the perfect 'cute cardigan for Spring.'
The Duchess of Cambridge's younger sister often raises eyebrows with her rather dowdy styling and the unflattering woolen dress seemed a strange choice for a trip to the shops, especially when teamed with a pair of canvas pumps.
Healthy Pippa had purchased some Lambs Lettuce
salad, and may also have stocked up on strawberries and cream ahead of
the Wimbledon tennis tournament which starts today
Residents of the village thronged onto the streets to watch guests - including Princes William and Harry - make their way from the castle to the parish church for the wedding and Pippa, dressed in a stylish monochrome dress was greeted at the church gates by cries from the crowd of 'beautiful'.
Later she joined 500 guests to celebrate after the service at the bride's 1000-year-old ancestral home which has doubled for Hogwarts in the Harry Potter films.
Pippa Middleton smiles as she arrives for the
wedding of Thomas van Straubenzee and Melissa Percy, daughter of Ralph
and Jane Percy, the Duke and Duchess of Northumberland
Kate's socialite sister extolled the benefits of ‘whisk[ing] away someone special for an evening of gazing and grazing’ and the Provencal Picnic menu includes peach and vanilla fizz, a fig and goat’s cheese fougasse – a type of bread associated with Provence – smoked chicken and melon salad and strawberry and lavender cheesecake jars.
The brunette wore another block-coloured twinset to watch Andy Murray play at Queen's