Essential Block Seamless High Waist Tights. Casall Essential Block Seamless High Waist Tights. 84% Recycled Polyamide, 10% Polyamide, 6% Elastane. A seamless knitted material in a unique design with different structures.Softness and elasticity guarantee a great comfort. A mix of recycled, normal polyamide and elastane makes it a cosnsciouse choice. Made in Portugal