Massaging backpack...(@_@)

I think Massaging backpack is not very important maybe because it's a high technology product and then of course it's more expensive than normal backpacks.Now there are many backpacks that have like...spongy pieces and it makes our shoulders be comfortable.So I think it's enough for us cause we are'not always wearing bags or backpacks.....and if maybe you're always using backpacks and it's need for your job like discoverer or tourism guide...So maybe it's better to buy massaging backpack...but you must be careful cause it's expensive and it's of course difficult to fix cause it has high technology details....And maybe it's not as fashionable as normal backpacks...So teenagers and others care about fashion too...And maybe they prefer normal bags more...(~_~)