Comfort: Women's vest is usually made of soft, skin-friendly fabrics such as cotton, silk or Modal.There has a built-in elastic band at the hem which will better wrap around your lower chest and upper abdomen.Support: Underwear provides support to the chest or other areas to help shape the body and provide support.Features: low to medium impact, moderate compression, butter-soft material, four-way stretch fabric, multiple colors available, suitable for all seasons.Occasion: suitable for daily wear, comfortable material, running workout, moisture wicking, yoga fitness, can be paired with shorts or leggings, let you focus more on yourself. Material: Cotton/SpandexSize: S,M,L,XL.