I have a couple of the Terry boleros. I have the thicker one that is kind of fleecy on the inside (sounds like the same one that Emily has) and I have the 'light' one that is of a thinner material. The light verson is closer in weight to the Sheila Moon one, but it's definitely a different fabric.

I wear mine often. The thicker one is great for converting SS jerseys to LS ones for winter riding (under jackets). The light one is great for spring or fall rides where it's cold in the am but warms up, because it's smaller when rolled up and easily fits in a jersey pocket. I also like it in combination with a wind vest for mountain riding where the temps and weather are so variable.

It is a great piece to have for mountain descents when it's hot on the way up but chilly on the way down. This is a photo of me wearing it in just such a situation. I'd only just finished tossing it on when this photo was taken, so it's not 'arranged' just right yet. The Terry one has less 'body' material than the Sheila Moon one - so I thought it fit better under jackets and vests. The Sheila Moon one felt more like a bolero jacket and less like an 'extended arm warmer'...if that makes any sense.