The jeans sector is renowned for its significant environmental footprint due to high consumption of water and energy consumption, along with the application of chemicals throughout various stages of production. Life Cycle Assessment (LCA) is the most widely used method for calculating the environmental impact of products. This study adopts a cradle-to-gate approach to evaluate the environmental impacts of a pair of jeans, focusing on two major impact categories: global warming and water consumption. Results reveal that a single pair of jeans emits 12.6 kg of CO2 eq, primarily attributable to the fabric manufacturing phase, which accounts for 47% of total emissions. Additionally, water consumption per pair of jeans amounts to 0.606 × 10–3 m3, with the cotton growing phase responsible for 82% of the total consumption. By identifying key environmental hotspots, this research supports the implementation of targeted actions to minimize damage. These insights support the transition toward a more environmentally friendly textile industry.