Please refer to following size list,the dimension is laptop's.
If you are not sure,please feel free to contact with us.
Following Size is Laptop Dimension,please refer to it for choosing fitting bag.Thanks

11.6 macbook air（A1370/A1465）: 300×192×17mm
12 inch macbook air(A1534): 280.5×196.5×13.1mm
13.3 macbook air(A1369/A1466): 325×227×17mm
13.3 macbook pro with retina screen display(A1425/A1502): 314×219×18mm
13.3 macbook pro with touch bar（A1706): 304.1×212.4×14.9mm
2016 New 13.3 macbook pro retina without touch bar （A1708）：304.1×212.4×14.9mm
13.3 macbook pro with DVD Rom（A1278）: 325×227×24.1 12.9 inch iPad Pro：305.7×220.6×6.9mm
15.4 macbook retina with retina screen display（A1398）: 358.9×247.1×18mm
15.4 macbook pro with DVD Rom（A1286）: 364×249×24.1mm
15.4 macbook pro with touch bar（A1707）: 349.3×240.7×15.5mm

11.6 air(A1370/A1465),12 inch air(A1534),13.3 air(A1369/A1466),13.3 pro with retina screen display(A1425/A1502),
13.3 pro with touch bar(A1706),2016 New 13.3 pro retina without touch bar (A1708),13.3 pro with DVD Rom(A1278),
15.4 retina with retina screen display(A1398),15.4 pro with DVD Rom(A1286),15.4 pro with touch bar(A1707)

And the bag may be a little bigger than laptop,when your laptop is not Apple Macbook laptop.

11 inch sleeve
Asus Vivobook E200HA: 286 x 193.3 x 17.5 mm
Huawei Matebook:278.8 ×194.1 ×6.9mm
Surface Pro 1/2 with keyboard: 274.57 ×172.97 ×13.46mm
Lenovo Yoga3 11; 290 ×197 ×15.8mm
Lenovo IdeaPad 100s: 292×202×17.5mm

13 inch sleeve
Surface Pro 3/4 with keyboard: 292.1×201.42×8.45mm
Dell XPS 13 Series: 304×200×15mm
ASUS ZenBook TP360CA：323×220×13.9mm
Lenovo thinkpad x250: 305.5×208.5×17.7 mm
HP EliteBook 820: 310×215×21mm
Lenovo Yoga 900:324×225×14.9mm
razer blade stealth:321×206×13.1mm
HP's EliteBook 1030 G1:310×210×15.7mm

15 inch sleeve
Lenovo IdeaPad 500s/700s: 338×232×13mm
Lenovo Yoga 2/3/4 Pro: 330×220×15.5mm
Asus U305/U303L Series: 323 ×226 ×20MM
Lenovo Thinkpad X1`Carbon: 331×226×18mm
DELL VOSTRO 5459：337×233.5×18.3mm
Lenovo thinkpad T460: 339×232.5×21mm
Lenovo Yoga 3 14: 335×230×18.3mm





Superior material: High Quality PU ,soft and durable,anti-scratch and pressure resistance

Ultra-thin Slim Design:easily slide into your briefcase,backpack

Magnetic Button,convinient to open and close: Protect Laptop from sliding out

As Mouse Pad,spread the sleeve,put mouse on,slide smoothly

Luxury PU Material,exqusite touch feeling,impact reducing