Helly Hanson Lifa pink base layer tights. Lightweight insulation 100% Lifa- polypropylene Elastic waist band for great fit and freedom of movement Flatlock seams for max comfort HH Lifa is a performance base layer, delivering lightweight insulation and comfort for everyday use and high performance activities. HH Lifa constructed with 100% Lifa fiber is quick-dry, very breathable and super lightweight. New with tag