A division between natural and dark skin tone due to receiving a [[tan]] while wearing clothes. Commonly in a [[swimsuit]]-like shape, but there are other types.

h4. See also

* [[accessory tan]]
* [[bikini tan]]
* [[double tanline]]
* [[farmer's tan]]
* [[one-piece tan]]
* [[pasties tan]]
* [[shibari tan]]
* [[shirt tan]]
* [[shorts tan]]
* [[slingshot tan]]
* [[sun tattoo]]
* [[revealing tanlines]]
* [[presenting tanlines]]
日焼け跡