Natural fibre jerseys are often touted for their breathability and comfort, but how do they actually compare to synthetic alternatives in terms of moisture management and temperature regulation? What specific properties of natural fibres like wool, cotton, and silk make them more suitable for high-intensity activities like cycling, and are there any drawbacks to consider? How do manufacturers treat and process natural fibres to enhance their performance and durability, and what impact does this have on their overall comfort and breathability? What are the key differences between merino wool, for example, and other natural fibres in terms of their breathability and moisture-wicking capabilities? Are there any emerging natural fibre technologies or innovations that could potentially disrupt the market and offer even greater performance benefits for cyclists? How do natural fibre jerseys hold up in terms of durability and longevity compared to synthetic options, and are there any special care or maintenance requirements to consider?