Lululemon Fast and Free Tight 25" Nulux Dimensional Icing Blue Multi, size 6 100% pure freedom. The Fast and Free collection, powered by Nulux™ fabric, is all about weightless coverage and unrestricted movement so you can focus on catching that runner's high. nulux™ Nulux™ fabric is quick-drying, sweat-wicking, and offers lightweight coverage features Designed for: Run Lycra®: Added Lycra® fibre for shape retention Waistband pocket: Helps keep your essentials close Drop-in pockets: Snug drop-in pocket keeps your phone in place Continuous drawcord: Won't get pulled inside or lost in the wash.