... stink like synthetics,natural stretch for a comfortable fit.It's like a second skin.Materials:100% merino wool Micron ... superfine merino wool (17.5Mic ~ 18.5Mic), after wool top’s mercerization, the product is soft, plump, flexible, delicate, smooth, ... while having better heat retention, good for all seasons, spring and autumn and winter wear is preferred.Fabric construction: Jersey,InterlockFabric ...