This is a Foxfire cut-and-sew top. This item is XL, but I usually wear a size L. The size feels like it would be a better fit for someone hesitating between L and XL, rather than someone hesitating between M and L. Here are the actual measurements, but please forgive any errors due to amateur measurements: Length: 72cm Width (underarm): 57cm Sleeve length: 66cm The material is a blend of polyester, merino wool, and polypropylene, and the fabric utilizes the characteristics of each material. Hydrophobic polypropylene is placed on the innermost layer that touches the skin, and the polyester and merino wool on the outside absorb sweat, creating a structure that prevents chills from sweat. Anti-static discharge tape is sewn on the cuffs and underarms to reduce static electricity. I've only used it a few times, mainly as loungewear during trips, so the condition is good. Please understand that this is a used item. Thank you.