Lululemon Define Jacket. This one is older than the newer released products and therefore, better quality. Heathered Grey Colour (called Heathered Slate). Size 8. Layer on this warm, lightweight jacket before you hit the hiking trails or head to the studio. luon® Our sweat-wicking, four-way stretch Luon® fabric is cottony soft—we love this high-performance fabric for its serious stretch and recovery in all our sweaty pursuits sweat-wicking four-way stretch cottony-soft handfeel quick recovery naturally breathable features Designed for: Office Travel Commute Lycra®: Added Lycra® fibre for shape retention Thumbholes and cuffins™: Help keep sleeves down and hands warm Secure pockets: Secure front pockets store your essentials