Very well made and I was impressed on how efficient it is when riding in cool temperatures
Haven't yet had the chance to wear in colder weather but on a windy mid-50s day I wore it with a wind vest and it was very cozy yet not at all clammy. Love the Polartec Power Wool fabric; you just know it's going to be warm and comfortable when you feel it the first time. Seems like the long sleeves are a bit longer than other jerseys, which is a positive for me. Slightly freer fit than the LS Lightweight House Jerseys I also purchased--also a plus for me.
This jersey is the perfect weight for rides throughout the cooler time of the year here in WA (typically with a merino wool baselayer through winter). I absolutely love the fabric and it truly does have that extra insulating quality when damp (essential in my area). Can't recommend enough!