When heat and humidity hit, AIRism’s smooth, quick-drying fabric wicks away moisture to help you feel fresh and comfortable. It’s essential clothing you can rely on, whether you’re dressing for a warm commute, layering under your outfit, or building a summer-ready wardrobe.

AIRism is the solution for situations that get uncomfortable quickly: hot commutes, crowded indoor spaces, and long days where you want your base layer to stay comfortable. It’s also made for easy layering, so an undershirt can sit smoothly under a button-down or knit without adding bulk, and it can still feel comfortable moving between air conditioning and hot outdoor temperatures. If you’re looking for sweat-wicking shirts that feel light, our AIRism T-shirts can function as an everyday layer, while options like AIRism underwear are designed for next-to-skin comfort. AIRism is especially popular as a sweat-resistant undershirt.

Customer feedback on AIRism consistently comes back to performance you can feel immediately.

For the AIRism Boxer Briefs, reviewers describe a noticeable shift from traditional cotton. One customer explains that the fabric wicks away sweat and leaves them feeling much more comfortable throughout the day, while another sums it up more simply, calling them “great for lounging and walking around.”

AIRism tops offer similar experiences. Reviews for the AIRism Cotton T-Shirt highlight how the material feels, with customers describing it as smooth and comfortable, and note an easy, reliable fit that holds up in everyday wear.

AIRism is UNIQLO’s fabric technology designed to help reduce discomfort from heat and sweat with a smooth feel and moisture management.

AIRism uses ultra-fine fibers engineered to wick moisture and dry quickly for comfortable everyday wear.

AIRism is built for everyday comfort and moisture control in warmer conditions, while HEATTECH is designed for thermal warmth in colder weather.

Follow the care instructions on the product page and garment label; many AIRism items are machine washable.

Yes. AIRism is positioned around smooth, quick-drying, and a cool-to-the-touch feel, which are especially useful in hot or humid weather.