flame resistance 50% merino, 50% lenzing FR rayon Item No:JY1210-1Product Name:flame resistanceContent: 50% merino, 50% lenzing FR rayon Weight: 210GSM Construction: knitted rib Description: Inherently flame retardant so no chemicals next to skinLenzing FR fibres are blended with Merino for maximum warm and comfort.Merino have added ability to wick moisture off the skin keeping you dry and warm.Flame retardant performance not affected by repeated laundering.Flat sewing seam and all the thread are FR material.Excellent charring characteristics ensures garments do not melt or drip for greater protection