... with 4-needle coverstitch. Child's 100% superfine merino wool t-shirt:1) Color: solid or mixed 2) Weight: 150GSM----400GSM ... jersey, rib, terry, fleece, brush, double face, pointelle etc 4) Fiber: cashmere, silk, merino wool, cotton, bamboo, function nylon, polyester etc ... Yamato flatlock machines. Child's 100% superfine merino wool print t-shirt