The Rho Heavyweights – their warmest base layer tops – are made for cold days and mixed output. On the move, the Polartec® Power Stretch® Pro stretches for outstanding freedom of movement. During rest phases – or when it gets really cold – the fleece’s soft brushed interior traps heat to keep you warm. The fleece’s durable nylon outer has a smooth face for comfort under layers, the mock neck extends warmth, and a kangaroo pocket stashes your smartphone and warms your hands.The Rho Heavyweight Mock Neck was previously the Rho AR Mock Neck. Size and Fit Tips: Regular Fit - Their classic fit is cut comfortably throughout the chest, waist, hip, and thigh. It allows freedom of movement, provides shape, and layers comfortably under our insulation and midlayers. Be sure to double-check our new sizing charts before checkout.
