Size Exterior Size Interior Size 11 33.5x23.5x3cm 32.5x22.5x2.5cm 12 33.5x23.5x3cm 32.5x22.5x2.5cm 13 36.0x26.0x3cm 34.5x24.5x2.5cm 14 40.0x28.0x3cm 38.0x26.5x2.5cm 15.4 43.0x32.0x3cm 41.0x30.0x2.5cm 15.6 43.0x32.0x3cm 41.0x30.0x2.5cm Durable Dupont Eco-Friendly Nylon Waterproof, this form-fitting protective sleeve case enables you to safely carry your Macbook / Laptop Case Sleeve in sleek style. Built-in large pocket for documents, smartphone and small devices; Built-in card slot for business cards,bank cards etc. Three side pockets provide 360 degree protection and keeps your equipment protected. Slim and lightweight; does not bulk your laptop up and can easily slide into your briefcase, backpack, or handbag. Package Including 1*bag Note :Please kindly allow 1-3 cm difference due to manual measurement A litt color different is shown in the monitors. wish you could understand Thank you