Reverse brindles ar normal within the boxer breed. Sealed are not.
They are just trying to come across as knowledgable while giving a BS excuse as to what they are actually doing. I'm not saying they have personally added in another breed but way back some where someone did and now these types of "breeders" are trying to cash in on the unique coat colour. Believe it or,not but there was a breeder selling Black and Tan boxers (marked like a rotti) several years ago claiming them to be purebred.
Kari ~ Keeper, servant and mommy to the following crew
**Proudly Raw fed since 2009**