Silverstone, who made a name for herself as America’s sweetheart in the mid 90s, wore her shoulder-length blonde hair loose.
The 45-year-old actress and her little one, 10, took a hike and were joined by their three dogs.
Alicia wore sweats topped with a silvery grey vest jacket.
The Clueless star’s tot was dressed similarly in a white shirt layered with a blue vest.
It was a bit disheveled as it fell in its natural texture in an undefined part.
Under her outerwear she sported a brown crewneck sweatshirt.
A long white shirt poked out from beneath it and her sweatpants were grey, as well as her sneakers.
She was seen smiling as she led the way for her only child and their trio of pups.
The Southern California sunlight highlighted her face while she trekked the city trail.
Alicia has always been candid about her close bond with her son. She recently shared a pair of throwback photos of the two on social media and said: ‘Omg! Love #FBF.’
Silverstone and ex-husband Christopher Jarecki share joint custody of Bear following the 2018 dissolution of their 10-year marriage.
The Masters of the Universe: Revelation star was ordered to pay the 44-year-old musician $12K/month in spousal support through January 31, 2024 – according to People.
Alicia has four films due out next year, including Alex Hardcastle’s comedy Senior Year starring Rebel Wilson as a 37-year-old high schooler waking from a 20-year coma.