Merino,Spandex
Snap closure
Machine Wash
95% merino / 5% spandex of 20.5 micron expedition weight, fleeced Merino fabric for extreme cold
Snap closure, quarter length Henley collar to dump heat or keep it in. Ergonomic cuff with thumb loops to help with layering
Modified raglan sleeve moves seams out from under backpack shoulder straps
Actual Product Weight Size Medium: 17 oz.