Thank you for viewing! Slim Feather Upper Arm Compression Innerwear This is an authentic product purchased from the official website. It will be shipped brand new, unused, and unopened. Size: M Sleeve Length: 24-30cm Shoulder Width: 36-43cm Upper Arm Circumference: 24-30cm Style up with upper arm compression innerwear proven to have calorie-burning effects! The compression support tightens sagging upper arms. In addition to correcting a hunched back, the uneven texture on the back of the fabric provides swelling care and warmth♪ This is a popular product that is talked about on YouTube, TikTok, Instagram, etc. Recommended for those who want to correct rounded shoulders and posture, and those who want to easily shape up just by wearing it♪ Instant purchase is OK☆ If you have any questions, please comment!