A double-layered frock for kids with a red print on white sounds adorable! You could consider a design where the top layer is made of a lightweight white fabric with a delicate red print, perhaps something like tiny flowers or polka dots. The bottom layer could be a solid red fabric to complement the print on the top layer and add volume and dimension to the frock. For added charm, you could add some lace or ribbon trimmings in red or white. This combination would create a lovely, playful look for any little one.