An ideal first layer the isoler merino baselayer provides unrivalled moisture absorptionrecently rated 810 by roadccquotthe isoler merino mens long sleeve baselayer from madison offers plenty of versatility for when things turn chilly with casual looks and fit it39s just at home as part of a layering system as it is on its ownquot read morethe 100 merino wool is 190gram in weight ideal for sports by keeping you warm on the cool days and quickly wicks the sweat away on the warmer