Corgi mix with red collar, missing in Cedar Rapids

I was walking Milo, my beige corgi mix, when he bolted from my side yesterday afternoon around 3pm near the NewBo City Market on 13th Ave SE in Cedar Rapids. He’s about 28 pounds, with a fluffy tail that curls over his back, and he wears a bright red collar and a blue bandana with tiny white bones. There’s a white heart-shaped patch on his chest, and one ear tips just a bit. He’s microchipped and very friendly, but he can be shy around strangers. I’m really hoping to find him soon—this little guy is my hiking buddy and means the world to me.