lululemon Align Waist-Length Racerback Tank Top in Transverse Lilac Multi size 8. When feeling nothing is everything. The Lululemon Align™ collection, powered by Nulu™ fabric, is so weightless and buttery soft, all you feel is your practice. feels buttery-soft and weightless, nulu™ fabric So buttery soft, it feels weightless Four-way stretch Sweat-wicking Breathable Added Lycra® fiber for stretch and shape retention features:Racerback shape allows for full range of movement