Berghaus mens long sleeved zip neck tech tee dark berghaus mens long sleeve zip neck technical t shirt is designed to perform at the highest level whilst keeping you both cool and comfortableideal for use as a baselayer when an effective layering system is required or perfect for stand alone use in warmer weather the optimal wicking performance of argentium combined with the odour resistant technology of polygiene results in a technical t shirt with a place on any adventure features b