Okay, as a kid from the 90's, Teenage Mutant Ninja Turtles played way too big a role in my life to skip that pun.
I'm also glad that turtlenecks have made such a comeback since their days around the neck of Zack Morris on Saved By The Bell. It rarely gets cold enough in Dallas to justify wearing them, so luckily, turtlenecks come in a variety of weights and textures. For pairing with your blazer, as I've done here, I recommend going with a light to medium weight turtleneck in a basic color. I like navy because it works with virtually anything and it's slimming in all the right places. So don't be afraid to add a different flavor to your look with this throwback.