The garment industry, particularly the batik sector, has experienced significant growth in Indonesia, coinciding with a rise in the number of online consumers who purchase batik products through e-Marketplaces. The observed upward trend in growth has seemingly presented certain obstacles, particularly in relation to product alignment and product information dissemination. Typically, batik entrepreneurs originate from Micro, Small, and Medium Enterprises ( or MSMEs) that have not adhered to the global norms. As a consequence, there may be discrepancies in the sizes of batik products available for purchase. The issue of size discrepancies poses a source of discontent among online consumers seeking to purchase batik products via the e-Marketplace platform. This predicament also directly affects batik vendors, as they are compelled to resend batik items that align with the desired size specifications. An effective approach to address this issue involves employing a smartphone camera to anticipate body proportions, specifically the length and width of those engaged in online shopping. Subsequently, by the utilization of machine learning techniques, the optimal batik size can be determined. The UKURIN feature was created as a response to a specific requirement. However, it is essential to establish a methodology for investigating the elements that impact the intention to use this feature. This will enable developers to prioritize their feature development strategies more effectively. A total of 179 participants completed an online questionnaire, and subsequent analysis was conducted utilizing the Extended Technology Acceptance Model framework. All hypotheses utilized in this study were confirmed, with the exception of the hypothesis pertaining to Computer Self Efficacy, which did not demonstrate a statistically significant effect on Ease of Use Perception. The findings indicate that Usefulness Perception emerged as the most influential factor. Consequently, when designing and developing the novelty feature of UKURIN, it is imperative for designers and application developers to prioritize the benefits aspect.