Table 3. Summary of Current Research Findings from the Systematically Selected Articles.

Category		Findings	Publication (Reference)	Considerations, Reasonings for Contrasting Results, and Future Research Agendas
Fiber	Polymer	Cellulose textiles released more microfibers than synthetic textiles	Zambrano et al., 201964	It is suggested that the difference in results from Napper et al.58 and Zambrano et al.64 to be due to possible modification of fabric due to purchasing of fabrics on the high street therefore future studies should aim to create textiles in house to allow full history of textiles to be known.
		Cellulose textiles released fewer microfibers than synthetic textiles	Napper et al., 202058
		Recycled polyester shed more microfibers than virgin polyester	Özkan and Gündoğdu, 202014	Future research agendas should focus on emerging textile polymers (i.e., orange, pineapple fibers etc.) and assess full impact of different polymers and blends that are used in highstreet clothing (i.e., acrylic, polyamide).
		Yarns with greater % blends of recycled polyester mixed with virgin polyester content release less microfibers than blends with lower percentages	Frost et al., 202066	Conflicting results of cellulose vs synthetic and recycled polyester should be further studied by keeping as many other fabric parameters such as twist of yarn the same, with only polymer of yarn changing.
		Microfiber release can be correlated to pill and fuzz formation (and thus breaking strength and tensile strength).	Zambrano et al., 201964	Contrasting results between Zambrano et al.64 and Dalla Fontana et al.65 could be due to multiple parameters changing within sampled fabrics causing issues when identifying influence to microfiber shedding.
		Pilling and fuzz formation does not correlate to microfiber release during washing.	Dalla Fontana et al., 202165	Future research agendas should focus on systematically altering singular fabric parameters as possible.