The Rho delivers the moisture management and breathable warmth your base layer requires - and it feels great on. Torrent™ lightweight fleece stretches, wicks away moisture, and has brushed interior that elevates performance and soft comfort. A Polygiene® treatment provides long lasting odour control. The trim fit keeps the material close to the body for more effective performance, but does not restrict, the crew neck layers easily, and articulated patterning adds freedom of movement.