I bought a school from skybags for myself and I am using of for past few weeks.the build quality is simply amazing and I had no problem there.the chain used is of very good quality.the bag has a huge space inside yet it is very light to carry around.though the price of bag is quite high but the bag looks very stylish and is very lightweight.the quality is so robust that it can bear even rain.the bag is water proof.as skybags is a very big brand hence its purchase stote is available almost everywhere.the aftersales support is also good.for testing once I even dipped my bag inside water for 1 minute with books inside it and when I took the bag out and opened it all the books were dry hence the bag is good.there are a total of 5 spaces in my bag and my bag cost rs.2500.i would not deny that the price of the phone is high but for getting a branded product you have to pay a little extra.I would suggest you to buy bags from skybags!