My suggestion is the large or extra large for these petticoats so you can get the length you need. They have an adjustable button if you need to bring in the waist and length.
This is a semi full petticoat, best if you want the subtle looking fullness. Lovely lace trim.
Knee-length, chiffon, lace-trimmed petticoat/slip. Very light and soft, and extremely durable.
Style: Two-layer, knee-length petticoat with lite fullness and lace trim.
Sizing: Adjustable waist and length. See below for sizing table.
Fabric: 30 yards of soft, fluffy nylon chiffon. Wide lace trim along the bottom.
Care: Hand wash warm. No bleach. Drip or fluff dry.
Note: Actual color may vary depending on brightness, color, contrast settings on computer monitor
Large length 23' Waist 26'-50'
XL length 23' Waist 29'-54'