Lifa Active is a performance base layer, delivering superior moisture management and lightweight insulation for all your outdoor activities. The Lifa Active Crew has an advanced 2-layer construction with 100% Lifa fiber next to skin and wicking technical fibers outside. All in all, an unbeatable combination for moisture management, lightweight warmth and all-day comfort. LIFA ACTIVE 2-layer construction bluesign product Ocean bound recycled materials