Which type of fabric is most appropriate to wear in high humidity with temperatures in the upper 90s?

Cotton is the most appropriate fabric to wear in high humidity and warm temperatures because it has excellent breathability and moisture-absorbing properties. This natural fiber allows air to circulate next to the skin, which helps to keep the body cool. Additionally, cotton can absorb moisture without feeling damp, thereby providing comfort in hot and humid conditions. When sweat is produced, it can evaporate from the cotton fibers rather than sticking to the skin and causing discomfort.

In contrast, synthetic blends often retain heat and moisture, making them less desirable in humid environments. Wool, while known for its insulative properties, can trap heat and moisture, potentially leading to overheating in warm weather. Denim is typically a heavier fabric, which also retains heat and can be uncomfortable in high humidity and temperatures. Therefore, cotton stands out as the most suitable option for such conditions.