Excellent condition 100% merino wool base layer set age 4-6. Only hand washed and air dried. Perfect for cold winter play! A BASE LAYER SET TO KEEP YOUR CHILD WARM ALL WINTER LONG. Base layer set for kids aged 2-10 years Made from light-weight, soft 100% pure merino wool 19.5 micron & 190 GSM Keeps kids warm when temperatures drop below 50F/10C Designed by a Norwegian mom who understands what it takes to keep kids warm. Standard 100 by OEKO-TEX