This is the latest chains from Shimano for the Dura Ace 9100 and Ultegra R8000 series, 11 speed.
Latest design with a Quick-Link included (worth $10).
Nothing beats an Original Manufacturer chain which is a lot quieter, smoother, more durable, minimum maintenance and a lot cheaper.
Ultegra - $45
DuraAce - $65
Self-collect @ Ang Mo Kio