NEW lululemon swiftly cropped tank top size 4 Swiftly Tech Cropped Racerback Tank 2.0 1. Go ahead, get sweaty. The Swiftly Tech collection, powered by seamless construction, is the ultimate gear for running and training 2. Seamless construction for minimal seams. Where there are seams, they're flat for reduced chafing 3. Silverescent™ technology, powered by X-STATIC®, inhibits the growth of odour-causing bacteria on the garment 4. Added elastane improves stretch and shape retention 5. Mesh construction for breathability 6. Slim fit, cropped length