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Factors such as the change in technology, the unconscious use of resources, and the adoption of trends that trigger consumption have made the apparel industry one of the most resources consuming sectors. However, with the increasing awareness in the sector and consumers, concepts such as slow fashion, sustainable production, and recycled products have come to the forefront and the demand for these products has increased day by day. In this study, the factors affecting the purchase of textile products made from recycled materials were examined. For this purpose, 11 experts, working in the textile industry or academia with at least 1-4 years of experience were asked to comparatively evaluate the criteria that affect making the purchasing decision for a recycled materials used garment and the obtained data were analyzed with the DEMATEL method. In conclusion, it was determined that the highest impact in terms of prominence level was the Environmental Impact (C5), and the lowest impact was the Brand's Social Responsibility Projects (C3)

The role of fabric properties in sewing performance and seam quality is essential, therefore, it is crucial to understand the effect of diferent parameters on traditional fabrics’ sewability properties. This study aimed to evaluate the seam quality of traditional fabrics produced from silk, cotton and linen fibres and their blends in terms of seam strength, seam efficiency and fabric sewability. The samples were sewn using two different sewing needle size (75 Nm and 90 Nm) and sewing thread (100% mercerised cotton and 100% polyester corespun). Based on the obtained results, it can be concluded that sewing thread and fabric type had significant effect on seam strength and seam efficiency. The samples sewn with polyester corespun sewing thread had higher seam strength than other. The sewing needle significantly affected the needle penetration force values and the silk fabric had lowest sewability values both in warp and weft direction.

In recent years, with the increase in global awareness of environmental problems, the term “sustainability” became more important for apparel manufacturers and consumers. Therefore, recycling of wastes plays a significant role in environmental sustainability by converting the wastes into raw materials. This study focused on recycled cotton-included fabrics, to evaluate the effect of these fabrics on thermal comfort properties. In this context, first, the 45% recycled cotton/55% polyester blended yarns and 50% virgin cotton/50% blended yarns were obtained. Afterwards, single jersey and rib-structured fabrics were knitted using these yarns. The thermal comfort tests were performed on the fabrics and four long sleeve rounded neck shirts then were manufactured using these fabrics to test by the thermal manikin method. Results showed that the yarns including recycled cotton led to a decrease in the values in air permeability of the fabrics and in the effective clothing insulation of the garments. In contrast, it was observed that, including recycled cotton increased the thermal resistance values of the fabrics.