Two M-size items are being sold as a set. My wife bought these about two years ago, but they were never used and have been stored. The original retail price at the time of purchase was 7,150 yen including tax, but it seems the price has increased to 8,690 yen. I own three of these, and one is listed separately. If you wish to purchase multiple sets, I will accommodate combined shipping. Below is the official description of the current product: This series is the thinnest and coolest of the Dry Layer® products. It achieves approximately twice the coolness of Dry Layer® Basic (※) (※based on thinness and q-max value). Utilizing the smooth texture and cool feeling unique to nylon, it's a cool and dry layer perfect for those who feel the heat easily, summer mountain climbing, and activities with a lot of perspiration. It has a light and comfortable feel. It is a very thin specification that is slightly see-through. This is a bra tank top for outdoor women that reduces sweat-induced chills and stickiness on the bust. The uniquely developed three-layer bra pad has excellent sweat wicking and the cup itself does not retain water, so you won't feel a cold chill even when you sweat. Soft mesh elastic is used in the underbust area, where sweat tends to accumulate, to allow for good sweat wicking, suppressing sweat odor and stickiness. While being extremely thin and lightweight, the integrated bra pad gently holds the bust, and it doesn't constrict, yet it prevents bouncing, providing a new sensation of comfort. ■ Excellent durable water repellency, 100 washes at 80 points ■ Antibacterial and odor-resistant ■ Sewing specifications that are gentle on the skin ■ Integrated non-bounce pad that doesn't constrict 【Compatible Activities】 All activities when it's hot ※ Dry Layer® works effectively when layered with sweat-wicking and quick-drying wear. Please wear it directly against your skin, and layer sweat-wicking and quick-drying wear over it. ※ This product (Dry Layer® Cool) uses delicate knit fabric to achieve both lightness and functionality. Repeated friction, snagging on Velcro, branches, etc., and contact with hard objects may damage the fabric. In addition, knit fabric has a tendency to shrink with repeated use and washing, and especially tumble drying should be strictly avoided as it will cause significant shrinkage.