I have really been into the tight-turtleneck-tucked into-anything look right now and I am seriously feelin myself everytime I rock this look. I have always been a sucker for anything with a high neck, turtlenecks especially. They are a seriously versatile piece and should definitely be a staple in your wardrobe. You can get them in almost every color, have them on heavy rotation, and frankly, it pulls together any look you are trying to achieve.
You can find some great & affordable ones at Zara, Topshop and H&M!