Objective: This study aimed to investigate the skeletal, dental, and soft-tissue cephalometric outcomes of Class II malocclusion correction utilizing the mandibular advancement feature of Invisalign in growing patients. Materials and Methods: A retrospective cohort study was conducted on 20 patients (9 females, 11 males) aged with a mean age of 13 years (ranging from 9.9 to 14.8 years), all of whom had completed the mandibular advancement phase of Invisalign treatment (Align Technology, Inc., San Jose, CA). Data collection included photographs, digital study models, and cephalometric radiographs taken at baseline (T1) and at the end of the mandibular advancement phase (T2). Key metrics recorded included the number of aligners used and the duration of treatment in months. Cephalometric measurements, including overjet and overbite, were assessed, with statistical analyses performed using SPSS software (version 25; SPSS, Chicago, IL). A significance level of P < 0.05 was set, and paired t-tests were employed to evaluate differences between T1 and T2 measurements. Results: All participants engaged in multiple staged advancements with the precision wings, indicating a progressive approach to mandibular advancement. The average duration of the mandibular advancement phase was 9.2 months (ranging from 7.5 to 13.8 months), during which an average of 37 aligners (30 to 55) was utilized. Statistically significant improvements favouring Class II correction were noted in the ANB angle, WITS appraisal, facial convexity, and mandibular length between T1 and T2. Additionally, significant changes in nasolabial angle, overjet, and overbite were observed, indicating effective correction. Conclusion: The application of Invisalign aligners with the mandibular advancement feature demonstrated an average correction of 1.5 mm in overjet over approximately 9 months. The angulation of lower incisors remained stable throughout the Class II correction process. Overall, the findings suggest that while skeletal changes were minimal, they were beneficial in promoting Class II correction in growing patients. [ABSTRACT FROM AUTHOR]