Product descriptionHH LIFA Active is a performance base layer, delivering superior moisture management and lightweight insulation for all year activities. HH LIFA Mid is an advanced two-layer construction with 100% Lifa® fibre next to skin and wicking technical fibres outside. All in all, an unbeatable combination for moisture management, lightweight warmth and all day comfort. Helly Hansen HH Lifa Wms Active Crew Ebony Baselayer & Thermals Ski Clothing