Size: No size dot or tag. Listing as a size 6. Please see measurements in the description below to ensure a proper fit. Fabric does have LOTS of stretch. Condition: Excellent used pre-owned, has a little wear mark to fabric near hem zipper. Care: Machine wash cold Chilly weather won't keep us inside - we designed this slim-fitting long sleeve to help us hold on to our heat. Soft Rulu fabric is thick for warmth and wicks sweat to help keep us dry. Crisp air, don't care. Key features soft Rulu fabric has four-way stretch and wicks sweat away from your skin breathable Mesh panel in the back and under the arms lets you blow off steam slim fit helps keep your core warm hidden pocket in the hem fits your key or gel reflective details at the cuffs help keep you visible thumbholes help your sleeves stay in place for easy layering chafe-resistant flat seams for comfort Tech specs designed for:run fabric(s):Rulu properties: breathable, lightweight, four-way stretch, moisture wicking fit:slim Measurements: Pit to pit - 15” Sleeve - 21” Length - 24”