Author: Maria Chiorando For Mailonline

Cat back packs are becoming more fashionable – thanks in no small part to their appearance in some current pop culture moments.Bags are backpacks with a transparent ‘window’ that can be used to transport animals – usually cats, but sometimes small dogs.And they have divided opinions, with some people thinking that they are useful for carrying their pets around with them. However, many believe that they are cruel. They’re just one of those weird trends that’s gaining support from the public — many of whom have seen celebs using them — but not all of these pet trends are popular…