Ribbed Turtleneck Tank Soft, Stylish & Perfect for Layering Karen Kane Casual Ribbed Turtleneck Tank S 114 LaneBryant knit turtleneck ribbed tank top. bright, colorful Depop Ribbed Turtleneck Tank Top. Our favorite everyday essential fabric, Perfect Knit Rib, now in a new silhouette. Looks great under a jacket, blazer, or cardigan, she's a great base layer for elevated looks, the 9 5, or casual events. As always, the PKR construction has texture for days (and nights) with just the right amount of stretch to ensure a flattering, comfortable fit.