You can choose 1 size smaller or larger depending on the posture you want.
Model's Dimensions: Height: 1.GRIMELANGE Maritza Women's Regular Fit Elastic Waist and Cuff Fleece Inner Vanilla Sweatpant ; Relaxed fit: Normal size, low shoulder, wide cut, it is a pattern between oversize and regular. ; Fabric quality: 75% Cotton 25% Polyester; The product on the mannequin is size S.