Body Touch invisible knickers. These knickers are seamless for a totally invisible finish under your clothes. Body Touch waistband holds the tummy in without constricting. Fabric content and care advice: 81% polyamide, 19% elastane. Please refer to the care instructions on the product label. OEKO-TEX® Standard 100. Standard 100 certification by OEKO-TEX® tests textile products for harmful substances via an independent, international label.