■ Name Slim Feather ■ Material 90% Nylon, 10% Polyurethane ■ Size M (2 pieces) Sleeve Length: 24-30cm Shoulder Width: 36-43cm Upper Arm Circumference: 24-30cm 【Material with excellent elasticity and durability】 Spandex is characterized by its rubber-like elasticity and high durability that is resistant to deterioration. It can help you develop the habit of maintaining good posture. If you are concerned about flabby upper arms, a hunched back, rounded shoulders, poor posture, wanting to look slimmer, or stagnation of circulation and lymph, please give it a try. Available for immediate purchase. Will ship within 1-2 days. Please feel free to send a message if you have any questions. Thank you for viewing.