Product detailsPlus velvet shock-absorbing laptop bag. Suitable for all sizes of computers, ul-thin models. Can be single shoulder, cro-body, portable. Multi-level office waterproof document package.Product name:Simple computer bagMaterial:Wear-resistant Oxford clothShoulder sp :Detachable shoulder spProduct Size:13 inches 35cm* 25cm* 3cm14 inches 37cm*27cm* 3cm15.6 inches 39cm*29cm*3cm17 inches 45cm*32cm*3cmManual measurement, there are errors. The error is 1-3cm.