H-wler is a Thrash metal band from Costa Rica that came from the fusion of two bands of the zone, Inhaler and H-wler, who decided to keep the name of the second one. H-wler has been the opening act for bands like D.R.I and Whiplash. In 2012 H-wler released a four songs EP called Sign of the Lost. In 2014 the band released their first album called Back to Madness.