Children School Bags Kids Backpacks Leisure Waterproof Shoudler Bag High Quality nylon, it is better than PVG Denmension: 46 * 30 * 14cm, can fits for 14inch laptop or MacBook. The strap belt is S type desigen,it can protect spine of your child .Also,it is with correction function of the spine. The belt fill the cotton sponge. about 8CM width,It can let the kids feel more comfortable. Multi-compartment can then organize all your stuff like laptop, tablet, paper, books, pen case, etc.