In general these leotards run true to size. They are milksilk (soft and stretchy) so have some stretch. Taller girls might have to size up for longer arm length. They have a triple strap back (the highest strap can be cut to allow more room to get on).
Callan Kay is 28 pounds and 37" tall wearing 2t. She has a little room to grow.
Zellie Grace wearing a Leo size 3t for a perfect fit! She is 35 pounds and 39 inches tall.
Livie is wearing a 3t which is her normal size for a snug fit. The milksilk fabric is very forgiving, so it fits like a Leo should, but we would recommend sizing up if your girlie doesn't like things too tight. She is about 35lbs, 38".
Landry is wearing the 4T. She is 39 in. & 32lbs. She has room to grow. I’d order the 3T for a more perfect fit.
Ellie kay is wearing 4t leo would size up to 5t soon she said it was tight in the legs.
Amariah is wearing 5t she is 45 in 42 lbs I would
Size up to 6 because of sleeves being shorter than I would like. Her arms are long