Product details?? External Dimensions5 different size for option, universal for most notebooks and monitors in the market. Slim, lightweight and portable to take alone, perfect for velers, office men and businemen.?? Multi-layer protectionAs an inner bag, The outer fabric layer protects against dust, dirt, debris and scratches. The padded computer carrying case design offers protection against bumps, shakes and extrusion when put in a backpack or suitcase.?? StyleOne main compartment for the laptop and the additional front pocket storage space keep the smaller it well-organized, such as your pens, cables, chargers, mobile phones, laptop acceories, etc.Product Size??Due to the curved corner protection design, please measure your monitor/laptop before purchasing, and leave 2-3cm of space for the corner. If you’re not sure, feel free to contact us :)???? 13.3 Inch: Inner Size: 317*217*15mm( Outer size: 330*230*20mm )???? 15.6 Inch: Inner Size: 367*249*15mm( Outer size: 380*262*20mm )???? 17.3 Inch: Inner Size: 427*317*20mm( Outer size: 440*330*25mm )???? 18.0 Inch: Inner Size: 433*292*19mm(Outer size: 446*305*24mm )???? 19.0 Inch ( With Handele ): Inner Size: 457*327*35mm(Outer size: 470*340*40mm )360 degree laptop fram protectionHigh-resilience edges and velvet lining design, protecting your laptops/monitors from hits and scratchesThree Layers ProtectionBoth sides of the sleeve case are sewn with 3-layer protection to protect your device from g scratchedWater-resistance SurfaceEx Pocket DesignAn ex pocket in front provides enough space to keep a mouse, earphones, pens, and notepads, offering added convenience.Product Images(13.3-18 Inch)( 19 Inch)