Whether you're up for adventure or ready for downtime, our fan-favourite Define Jacket, powered by Luon fabric, has a feel-good fit that can do it all. Designed for On the Move. Skims your body:Sits below the waistband for moderate, everyday coverage. Thumbholes and Cuffins keep sleeves down and chills out. Secure front pockets. Back vent strategically placed to provide airflow. Cottony-Soft Feel, LuonTM Fabric. Body: 87% Nylon, 13% Lycra elastane. Lining: 89% Nylon, 11% Elastane.