Attention:if your laptop is 15.6 inch,please choose 15 inch this bag
size :
12 or 13 inch:external size 38*27cm , internal size 34*25cm
14 inch:external size 40*29cm , internal size 37*27cm
15 inch:external size 43*32cm , internal size 39*30cm---(can store 15 to 15.6 inch laptop)
17 inch: external size 46*33cm , internal size 43*31cm---(can store 17 to 17.3 inch laptop)
Material: waterproof Nylon
include:laptop bag*1 piece,shoulder strap*1 piece