Firetrap Panelled Zip Detail Leggings. 73% Polyester, 24% Viscose, 3% Elastane. Concealed Zip Fastening. Contrast Fabrics. These Panelled Zip Detail Leggings from Firetrap are perfect for day or night. The contrast fabric style has been seen all over the catwalks and the legging style is ideal for a sleek silhouette. Wear with platforms and a sequin top for a night time look.