Lululemon Size 4 Define Jacket Nulux External Wave Starlight Black - Excellent Condition Made from a silky fabric that's cool against the skin, this lightweight jacket will keep you feeling refreshed along the trail or after class. Nulux™ fabric is quick-drying, sweat-wicking, and offers lightweight coverage Designed for: Office Travel Commute Lycra®: Added Lycra® fibre for shape retention Thumbholes and cuffins™: Help keep sleeves down and hands warm Fit: Body Skimming, hip length Fabric: Body - 83% Nylon and 17% Lycra® Elastane Lining - 89% Nylon and 11% Elastane Style Number: W4AXNS