It’s a vest with sleeves and those sleeves have THUMBHOLES! The sleeves are a midweight spandex baselayer material and the body is DWR coated RSD down filled (maybe 600 fill). Well loved but still has a lot of life left in it, the right hand pocket could use a little mending (see picture). Only giving it up because it doesn’t fit my hippy shape well, would be best for someone with a straighter build as I have to wear it above my hips to zip it/if I try to pull it down it rides up. Body measurements: 38” chest, 32” waist, 44” hip.