X-Bionic The Trick Running Base Layer Short Features: THE Trick Technology, Two-Step Front 3D Bionicsphere System, 3D Bionicsphere System at the coccyx, Sweat Collector, Sweat Transporter, Sweat Distributer with Partial Compression Materlial Technische Komposition 72 % Polyamid 72 % SkinNODOR 6 % Elastan 22 % Mythlan(TM) 22 % Polypropylen 6 % Elastan