Cormac Heavyweight Shirt LS Men's is a performance first layer long-sleeve shirt designed for mountain running, hiking and trail use, built for high-output comfort in cooler conditions.

• Product Type: Men’s performance first layer long-sleeve shirt
• Material: Synthetic
• Phasic™ AR II fabric provides thermal performance with moisture management and a soft feel next to skin
• Ergonomic design with articulated patterning supports freedom of movement
• Regular fit with thumbholes for secure layering

Pair it with a men’s windbreaker jacket and men’s hiking pants for cool-weather mountain runs and hikes.

Fit, function, fabric – the Cormac Heavyweight is built for freedom of movement and high-output comfort in colder conditions. Essential thermal performance, moisture management, and softness come from its Phasic™ AR II material. An engineered polyester made with wicking fibres, it provides stretch, sun protection, and is stitched for a smooth finish next to the skin. The ergonomic design and articulated patterning remove restriction, and the clean fit layers easily and wears comfortably on its own.

The Cormac Heavyweight Shirt LS was previously the Motus AR Crew LS.