MUJI Short-Sleeved Shirt This stylish shirt is perfect for summer and feels cool to the touch. I've worn it 3 or 4 times. I haven't worn it much, but please understand that it is a used item. The following is from the website: [Material] This cool material is characterized by its crisp and smooth feel. [Design] It's made with a relaxed box silhouette. It doesn't cling to the body and offers a comfortable, relaxed fit.