Yes. It is a replica. But it is made by Sand Knit (Gerry Cosby sold it, so they have a logo on there...quite rare). The only thing that differentiates this from an authentic jersey is that it doesn't have double thickness shoulders. All materials are of the same material as those on authentic and game issued jerseys...the only place that ever made 'em like that. I can always get it nameplated.
By the way, at one point or another they started making jerseys for the 'Skins...