Cozy, breathable warmth. Four-way stretch for the perfect fit. Plus a drop-tail hem with silicone grip for stay-put comfort – from mile one to 100. The men's Clima Pro Thermal LS Jersey is all about performance-ready technology: An inner mesh collar adds airflow and protection at the neck, while three covered back pockets with inner mesh fabric invite airflow at the back. Keep warmth where it counts with a zip guard and YKK autolock puller; pull down to shed heat when you need. Your new go-to, all season long.