Originally Posted by cyccommute
A better choice since it's one piece and less likely to come loose when you don't want it to is
Grab-on grips. Slightly denser than pipe insulation and not split. I've been using these for about the last 15 years and they beat the pants off of any other grip, in my opinion.
This is another type of pipe wrap. It's more like rubber than foam. Stretches tight and the split stays closed better. But, it also tends to compress more. The closed cell foam type that ILTB uses keeps its shape, and is pretty shock absorbant. It's basically the same stuff found inside some suspension seatposts.
These are somewhat similar to cyccomute's, but even cheaper.