lululemon Swiftly Tech Racerback Tank 2.0 The color is a vibrant turquoise blue. Size 4 I usually wear a size M top. This tank stretches very well, so considering the length and neckline, I chose a size 4, which is smaller than the size 6 I often buy in lululemon tops. Worn once. The size tag has been cut off. The gray photo from the website is a different color and is included for reference of how it looks when worn. Product Features: X-STATIC® Silverescent™ technology inhibits the growth of odor-causing bacteria. Slim fit Hits at the waistband, medium coverage for everyday wear Seamless construction to reduce chafing Minimal seams to reduce chafing Lightweight Sweat-wicking Mesh construction for ventilation Blended with elastane for stretch and shape retention