Lululemon Keep Moving Pants. Size 6. When life gets busy, these versatile, relaxed-fitting pants keep up. luxtreme® Is sweat-wicking, four-way stretch, and engineered not to shrink features Designed for: On the Move Lycra®: Added Lycra® fibre for shape retention Nulu™ fabric waistband: Buttery-soft Nulu™ fabric on the inside of waistband Drawcord with options: Wear the drawcord inside or outside to reduce bulk Secure pockets: Zipper pockets keep your stuff safe