I swapped out the 130g ODI Lock-On grips I've been using (and loving) to try these 22g Nitrile foam rubber jobs from purveyors of superbikes and bling kit Poshbikes.
I was a little nervous about using foam grips, fearing their spongy feel, fragility and water-absorbing nature. In all cases, these grips have proved my fears unfounded. They've remained tight, in one piece and while softer than the ODI lock-Ons, they're not as soft as some I've tried.
If you're looking for gloveless comfort, and also to drop a not-to-be-sniffed-at 100g from the front of your bike for less than a tenner, these are serious must-have additions.