This is a competitive swimsuit made by Arena. It's made of low-resistance, water-repellent, and highly stretchable material. The water repellency on the fabric surface is achieved through extremely fine uneven processing, which streamlines water flow to reduce resistance. This swimsuit is highly stretchable and designed to fit the body snugly. It also has cup hooks, so you can easily attach your own cups. The size is Ladies' XO (XXL), making it a recommended size for tall people around 170cm. The arms are very easy to move, which is a characteristic of Arena models. There is some wear and tear, such as on the rear, from actual use in the water. Please understand this before purchasing. #HalloweenOnMercari