SIMPLY SOUTHERN. YTH-SSBEEQUIET. GIRLS BEE QUIET SHORT SLEEVE T-SHIRT. MUSTARD. Your favorite Simply Southern mustard color with this cute bee design is a yes in our book. Grab your Simply Southern Youth Bee Quiet T-Shirt for Girls in Mustard while they re available. 100 percent cotton. Simply Southern bee graphic that reads -Bee Kind or Bee Quiet- on the back.