Special design, make you so slim and beautiful. Firm control on arm and correcting back curve. Breathable and sexy shell design. Creates the perfectly firm arms of your dreams. Instantly reduce arm flab Non Restrictive. Creates control, shape and smooths your arm instantly. The shapewear that slims you, shapes you and makes your world a better place! Size Chart: M --- Arm circumference: 9.4-11.8" / 24-30cm Shoulder circumference: 14.1-17" / 36-43cm L--- Arm circumference: 10.2-12.6" / 26-32cm Shoulder circumference :15.4-18.1" / 39-46cm XL --- Arm circumference: 11-13.4" / 28-34cm Shoulder circumference :16.5-19.3" / 42-49cm NOTICE: M US XS-S, L US S-M. XL US M - L. Size runs small, please choose a larger size for comfortably wearing. Sincerely thanks for your shopping!