The Rho Heavyweights – our 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 tall collar extends warmth, and the deep front zipper aids heat dump and makes on-and-off easier.

Tech Specs

• Moisture-wicking, Antimicrobial
• Polartec® Power Stretch® Pro combines a highly durable nylon face with a soft, comfortable, brushed polyester interior
• Trim fit keeps warmth close to the body, Trim fit makes it an ideal layering piece
• Articulated patterning for unrestricted mobility
• Tall collar
• Chest pocket with zip
• Deep front zipper for easy on and off, rapid ventilation