The BestSilicone-Based Lube
Silicone-based lubes are regarded as some of the best sexual lubrication because a little goes a long way and you don't have to keep reapplying during long sessions. Überlube, as the name implies, is the gold standard due to its silky texture and luxurious packaging. Instead of just being slippery, this is designed to "transfer sensation while reducing friction."
$18 by Überlube