A. It only includes a body shaper and does not come with underwear. B. Size chart: - Size S: Bust 70 - 74 cm, Sleeve length 38.5 cm. - Size M: Bust 74 - 78 cm, Sleeve length 40 cm. - Size L: Bust 78 - 82 cm, Sleeve length 40.5 cm. - Size XL: Bust 82 - 86 cm, Sleeve length 41.5 cm. - Size XXL: Bust 86 - 90 cm, Sleeve length 43 cm. - Size 3XL: Bust 90 - 94 cm, Sleeve length 44.5 cm. - Size 4XL: Bust 94 - 98 cm, Sleeve length 46 cm. - Size 5XL: Bust 98 - 102 cm, Sleeve length 47.5 cm. C. It has an effect on upper - arm shaping. The 3/4 sleeves have relatively strong compression force, which can wrap your upper arms, tighten loose skin, smooth out the excess fat around the armpits, and contribute to a slimmer figure. It is suitable for post - arm liposuction recovery and daily use. D. It is an adjustable front - closure compression bra. This full - coverage compression bra helps to support and hold the breasts in place. The three - row hook - and - eye closure design allows for free adjustment of the compression level to meet individual needs, and it is suitable for post - operative recovery. The wide underbust band provides more stability and support for the breasts. The design without a bra pad and underwire ensures comfort for a long time. E. It has a function of back support and posture correction. The back of this body shaper features an X - shaped cross - layer design, which can provide stable pressure to keep your shoulders and back straight. It's like an invisible posture corrector that can be worn under clothing. F. It is made of 70% nylon and 30% spandex, with elasticity and stretchability. The material is soft and breathable, and it is comfortable to wear for a long time. It can provide an invisible shaping effect for daily clothing without leaving obvious bra marks or wrinkles. G. It is suitable for post - operative and daily wear. This women's compression garment is designed for post - operative care such as breast augmentation, breast reduction, mastectomy, arm liposuction, and post - partum recovery. This adjustable body shaper helps to relieve pain, reduce swelling and speed up the post - operative recovery process. It is also suitable for daily work, parties, and posture correction.