Liev Schreiber & His Bike Boy

Liev Schreiber and girlfriend Naomi Watts took their 2-year-old son, Sasha, out for a bike ride through the West Village today (November 20).

Both Naomi and her son sported helmets for their outing – a red dinosaur helmet for Sasha – while Liev took his chances with a baseball cap.

The family – including their younger son Kai, 11-months – were spotted earlier this week on a shopping spree at Lilliput in Soho with some friends.