Chloe Sevigny and boyfriend Sinisa Mackovic with son Vanja, nine months

Chloe Sevigny and Sinisa Mackovic brave the cold while out on a walk with son Vanja in New York City

Chloe Sevigny bundles up in black for stroll with boyfriend Sinisa Mackovic and son Vanja

Chloe Sevigny and boyfriend Sinisa Mackovic go for a stroll in NYC with their son Vanja