Collars have been part of our shirts for hundreds of years and are available in many pretty styles from the girly ruff to the peter pan, the jabot to the wing, the cute sailor to the mandarin. Each style suits a different type of shirt and outfit and the right one will have the effect we wish to have, whether it is enhancing our shoulder, elongating our neck or thinning out our face. Tumblr has a lot of good advice on what suits each girl best. A white collar can be worn with a white shirt or a pastel one. We like to try different shirts with different styles of a white collar to find the one that looks fabulous on us.