I have a few authentic jerseys from over the years, and the quality has been in steady decline. The '06 is noticeably heavier and better put together than the redesigned models from a few years after that. I'm sure there was an effort to make the fabric lighter and more breathable, but they just don't feel like they're as well made. Same with the authentic dugout jackets. I have one from '06 or '07 with the gold-trimmed "NATIONALS" across the chest, and it's so much more substantial than the one I got around 2010 or so that has the curly W on the chest. It's held up better than the newer model as well, and these things have been worn sparingly over the years.