EUC- no issues. *Based on measurements, it is a size 2. Please verify size with measurements in pictures. Love the look and fit of our Swiftly tops? Then you'll love this winter version, developed specifically for cold weather workouts, in a fabrication that's over 30% Merino Wool. On top of being warm and thermoregulating, this half zip is made with seamless construction in the body to minimize chafing. Fabric is four-way stretch merino wool Sweat-wicking Merino Wool is soft, naturally insulating and will help regulate your temperature naturally insulating temperature regulating sweat-wicking soft handfeel naturally breathable features Designed for: Run No chafe: Seamless construction in the body minimizes chafing Thumbholes: Help keep your sleeves in place and hands warm Fit : Body Skimming, hip length