As our world continues to grow rapidly, the use of disposable bottles has surged, making it crucial to explore alternative methods for recycling or reusing these non-biodegradable materials. Recycling is essential to address this issue. This work aims to develop a composite material from recycled resources. The primary goal is to minimize landfill waste, protect the environment, and transform these materials into more valuable products. Composite materials are created by combining two or more materials, often with significantly different properties. In this study, recycled polyester flakes, PET fibers, and epoxy resin were utilized to develop a composite through compression moulding at 180 ℃ and 120 kg/cm2 for 1 h. A design of experiments approach was employed to analyse the optimal conditions and performance of the composites, examining various variables such as the percentage of PET fibers, recycled flakes, and resin. The composites were thoroughly characterized by evaluating key mechanical properties, including tensile strength, compressive strength, impact resistance, and hardness, to assess their overall performance and durability. The results indicated that the optimal combination consisted of 30% PET fibers, 30% recycled polyester flakes, and 20% resin.