The best way to tuck in a sweater over a skirt is to tuck it up and under an elastic belt! These belts come in a pack of 4 colors and expand from size 0-16. Also linked my sweater and skirt, I’m 5’ 7” wearing my usual size S in both. Kitten heel suede boots also fit tts LTKFindsUnder100 LTKShoeCrush LTKStyleTip