Which feature is NOT associated with Uniqlo's AIRism technology?

AIRism technology is primarily designed to enhance comfort and performance in warm conditions. Its key features include breathability, moisture-wicking properties, and lightweight comfort, all of which contribute to a cool and dry wearing experience. Breathability allows air to circulate, helping to regulate body temperature. Moisture-wicking properties draw sweat away from the skin, promoting evaporation and keeping the wearer comfortable. The lightweight nature of the fabric ensures ease of movement and comfort.

Insulation against cold is not a characteristic of AIRism technology. Instead, the technology focuses on keeping the body cool and dry in warm weather rather than providing warmth. Therefore, the lack of insulation against cold distinguishes this feature from those associated with AIRism.