The glove on the left is made from Malden Mill's "Power Stretch" fabric, and is my favorite all-round cool weather bicycling glove. I find it comfortable down to about 25 degrees Fahrenheit.
The glove on the right is a very light "liner glove". I see little point in them, at least for bicycling. A wind glove is more versatile as a single layer and nearly as light.
When worn as a liner to a larger glove or mitten, it's been difficult to notice that a liner glove has ever made much differerence.
The wind glove itself is small enough to be used as a "liner" in an overmitt, if desired.
For more commentary see my related blog post.