For a really trendy look, wear these leg warmers over a pair of tights... What a great fashion idea! Garter stitch knit. Ribbed edging. WHAT YOU NEED TO KNOW We make child safety our priority! This item carries the International Confidence in Textiles label, certified according to Oeko-Tex® Standard 100. This is your guarantee that the product contains no toxic or harmful substances. Leg warmers, 100% acrylic.