Elegant turtleneck secret: a ribbed stand-up collar to slip over the shoulders. It is a detachable, sleeveless design. Ideal to put over a T-shirt, under a blouse or jumper to keep your neck warm. Easy to put on: This collar is easy to put on and take off. Easy to combine with jumpers, dresses, uniforms, jackets, coats and other casual wear to create your unique look.