... is washable,dryable,and so soft and supple it is unbelievable.Merino wool wicks moisture away ... like synthetics,natural stretch for a comfortable fit.It's like a second skin. Main merino wool fabric ... wool (17.5Mic ~ 18.5Mic), after wool top’s mercerization, the product is soft, plump, flexible, delicate ... is washable,dryable,and so soft and supple it is unbelievable.Merino wool wicks moisture away ...