Tech Top LS Crewe 260 - Men'sThe men's Tech Top Long Sleeve crewe is a winter sports MVP. Built from our highly insulating 260gm merino fabric, it keeps your body warm but remains breathable and amazingly soft when worn as a baselayer, or alone on long hikes in the high mountains. With set in sleeves, forward side seams and offset shoulder seams, it won't chaffe when you work out or under a pack, and the drop tail hem provides a little extra coverage against chilly air. And