The outfit shown in the image is a black, long-sleeved, full-length bodysuit or jumpsuit, often marketed as activewear or casual wear.
Key features of the outfit include:
Style: A one-piece, seamless, body-hugging design with a square neckline and a ribbed knit texture.
Material: Typically made from a stretchy blend of 90% nylon and 10% spandex, providing both comfort and a flattering, slim fit.
Features: The long sleeves feature thumbholes at the cuffs to help keep them in place.
Versatility: The design is versatile and can be worn for activities like yoga, pilates, or running, as well as styled for casual daily wear with items like jackets or sneakers.