There are some fashion trends that shine brightly for a while and then disappear forever. Other trends are more mercurial, they disappear, only to reappear, loved once again by a new generation too young to remember them the first time around. One such fashion trend that fits this bill is the once much maligned bumbag, which has popped up again on the Skatehut site in a range of cool designs. The bumbag was a late 1980s phenomenon, often teamed with a shellsuit and trainers. It was a look that, for a while, was everywhere. But it fell out of favour very quickly, linked to badly dressed tourists who wore them…