100% Brand New and high quality case with zipper design ,Fashion design -- Feel comfortable , anti-shock , perfectly elastic , protect from collision --Portable and comfortable , great for carry alone --Won't distort under long time use --Dust-proof , static-proof ,scratch-proof --One pocket for laptop , some pocket for some accessories Size : 13 inch : External dimensions 35*26*3cm , Internal dimensions 33.5*24.5*2.5cm 14 inch : External dimensions 38*27*3cm , Internal dimensions 36.5*25.5*2.5cm 15.6 inch : External dimensions 42*31*3.5cm , Internal dimensions 40.5*29.5*3cm Please note : Some laptop with thin screen frame , may need reference laptop length and width diemension. Ultrabook 13 inch laptop may need choice 13 inch bag. Ultrabook 14 inch laptop may need choice 14 inch bag. Ultrabook 15.6 inch laptop may need choice 15.6 inch bag. Pls kindly contact with us if you cann't sure which size bag is fit for your laptop, pls tell us what is your laptop length and width in mm before you make order.then we can recommend which size bag good for you. Package include : 1 laptop BagProducts from Chunchuan's store