This is a long-sleeved, fleece-lined jacket from Sunvolt. Although it's not windproof, it's very warm. I've worn it about three times since I bought it, but I'm selling it because I won't be wearing it anymore. The seams are white, but this was the case from the beginning, likely due to the fabric's characteristics. The collar is also a bit white, and it doesn't come off even after washing, so I think it's the same. It's not noticeable when worn, so I don't think it's a problem, but please refrain from purchasing if you are concerned. Please consider this item with the understanding that it has been worn.