Children's clothing is a noteworthy area of the fashion business that contributes significantly to environmental degradation because of the fast growth rates that require frequent garment changes. As a result, more resources are used and more textile waste is produced. Innovative strategies that blend sustainability with pragmatism are needed to address these issues. In order to reduce environmental effect and meet the changing requirements of kids, this research study investigates the design and development of sustainable, multipurpose children's apparel using zero-waste principles. Children's quick development leads to a high garment turnover rate, which adds significantly to textile waste. Traditional methods for designing and making clothes can result in large amounts of fabric waste, which exacerbates environmental issues. In response to these concerns, sustainable fashion has surfaced, focusing on waste minimization, ethical production, and environmentally favourable materials. Specifically, zero-waste design, which removes textile waste during the design phase, has drawn interest because to its potential to lessen the environmental impact of clothing manufacturing. Nonetheless, not enough research has been done on the use of zero-waste concepts in children's apparel. Furthermore, adding multifunctionality to children's clothing can increase its usefulness and benefit customers in both practical and financial ways. By creating multipurpose, sustainable children's apparel designs that follow zero- waste principles, our research aims to close these gaps.