... of knitted garments. 100% superfine merino wool mens knitted thermal underwear long johnsMicron: 17.5~20.5Weight: 150~320gsmFabric ... layer, fleece etcComposition: merino wool, silk, cashmere, modal, tencel, cotton, polyester, acrylic, nylon, alpaca, viscose, bamboo, bamboocharcoal, polypropylene ... choice for you to choose our factory.Merino wool underwear, sportswear, cycling wear and all kinds of ...