CEP Men's Dynamic+ Cycle Ultralight Short Socks 69% Nylon (Polyamide), 16% Elastane, 15% Polypropylene Made in Germany Optimum heat and moisture management thanks to the use of polypropylene, which does not absorb any moisture into the fibers Minimally padded foot section for a perfect fit in tight-fitting sports shoes Approx. 30% lighter than CEP Progressive+ Run Socks 2.0 Perfect anatomical fit for maximum effect Antibacterial, odor-reducing properties