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.Features:LIFA® ACTIVE.Excellent moisture management properties.2-layer construction.bluesign® product.Oceanbound Recycled materials.This product contains at least 50% Recycled Claim Standard fibers, certified by IDFL (TE-99972454).Composition:Shell:66% Polyester (Recycled), 34% Polypropylene.