Time and time again, Kate Middleton and Prince William have stressed how important it is to them to give their kids as normal a childhood as possible, despite their unique stations in life as the second, third, and fourth in line for the throne. The Princess of Wales took her three children, Prince George, Princess Charlotte, and Prince Louis along with her in November to spend an evening volunteering at a baby bank in Maidenhead, Berkshire, not far from the family’s residence in Windsor.

The group engaged in the time-honored tradition of giving back to the community during the holiday season, packing pajamas for children whose lives have been impacted by poverty, as well as assembling holiday gift bags for the families helped by the baby bank.

In a video released by Kensington Palace, Kate, George, 10, Charlotte, 8, and Louis, 5, unload boxes of clothing from their car and bring them into the group’s building during the under the radar visit.

“Here there’s lots of people who give up their time and there’s lots of volunteers who help out, and so you’re the volunteers for this evening,” Kate tells her children. The Wales children also got to choose toys to pack into gift bags for kids their age, with Louis delighting in a large King Kong action figure and exclaiming, “This is a big guy!”

Charlotte, too, looked excited as she held up a onesie decorated with the Welsh flag and declared, “this is Welsh.”

Kate’s signature social issue as a royal has been the importance of early childhood. Many of her public engagements revolve around her Shaping Us initiative, and last week, during the taping of her annual carol concert, Together at Christmas, she invited home health workers and preschool teachers, among other early childhood professionals, to be in the audience as a thank you for their work.