Half-round below the twin. This...
Inner layer: 70% Dri-Wright II Polyester, 26% Nylon and 4% Lycra.
Outer layer: 71% Dri-Wright II Polyester, 24% Nylon and 5% Lycra.
Information about Dri-Wright:
Fiber Dri-Wright has been developed by Wrightenberry Mills. The advantage of the fiber of Polyester over other fibres is that it dries quickly and has a longer duration. The micro-grooves of the fiber dri-Wright,allow a better evacuation of the sudoraciñon respect to the fibers of Polyester traditional.