These picks are awesome! They have a perfect shape - slightly oversized Jazz III, and made of a very grippy material. It's very nice to touch, and doesn't get slippery even if your palms are sweating. Also, these picks are tend to bend quite well, and they "remember" the curve of your grip. Despite that, bending isn't a problem for the tip, and won't affect playing quick licks. These picks actually can dig through the strings very fast and smooth, while keeping picking noise to a minimum. The only downside to this material is it's not very durable, so the tip gets dull quite fast. But for the price, it's not really a problem, because you can buy a lot of them to maintain your supply.
To summarize:
+Comfy shape
+Great grip
+Low picking noise
+Great price/durability ratio
-Short durability (not a big problem)
I highly recommend these picks!