Justin Timberlake Shops With Jessica Biel and Son

Justin Timberlake missed the Black Friday deals this weekend ... but that didn't stop him and Jessica Biel from hitting department stores with their baby boy.

Paps got the couple hand-in-hand Saturday in NYC with their 1-year-old son, Silas ... who looked as sharp a dresser as his parents in the Big Apple.

He's also downright adorable taking in the sights. Mom and dad could show him a few things there.