Donning a black parka with a fur collar and leggings, Pippa rode around the city and made a visit to the gym.
She accessorised her look with a pair of sunglasses and a pair of trainers.
The super fit mum loves cycling and was regularly spotted riding through the streets of London before giving birth to son, Arthur, back in October.
But, this is the first time she has been spotted on her bike since the bub's arrival.
Pippa and her husband, James Matthews welcomed their son on October 15, however the happy couple didn’t immediately reveal the tots name.
It has since been revealed that his name is Arthur Michael William Matthews.
The baby’s name is a touching nod to James’ brother Michael, who died aged 22, while climbing Mount Everest.
Pippa was also spotted out and about doing a spot of shopping.