I bought several of these as I searched for the perfect fit. The shirt has a very modern/tight/muscular fit, with a nice fitting collar. Thick cloth and very well made. It is authentic. The pictures show everything from the auth tags, to the stitched-in logo, to the stitched-in care instructions tag carrying the correct logo “SIMIN T s.p.a.” This logo is one of two present on authentic care labels. I wear a M/L but an XL is a perfect fit for me so please consider ordering a size or two larger than what you wear here in the US. For example, this shirt is a L, so it would be a perfect fit for someone that wears a S/M. I also have a white M in another listing. If you are concerned about authenticity then please do your research as these are authentic, from the EU, and I really don’t want to debate this. I’m taking a loss on these but that’s simply what it took to find the perfect size. 🤷‍♂️ I would also say that while these were bought as mens, they are closer to unisex and do look great on ladies as well! Must be of smaller frame though for fit…. sorry about that! All sales are final unless I’ve made a mistake. Please check out my closet for some great finds!