My boyfriend is probably going to end up getting this dog. She currently belongs to a family member of his who is needing to rehome her. We are both trying to figure out what she is and can't quite pinpoint her breeds. These 2 dogs are littermates. The brindle one is the one who will probably end up his.
Their current owners were told when they got them that they were Lab/Heeler mixes.
Not so sure about that...and that definitely doesn't explain the brindle! 
So, info and several pictures...
They are around 1 year old.
They are roughly 40-45 pounds.
They are very high energy, though some of the pictures suggest otherwise, lol--the pictures were taken after looooots of frisbee play.
I haven't gotten to see her yet, just these pictures. Anybody have any input as to what she could be?
Their current owners were told when they got them that they were Lab/Heeler mixes.
Not so sure about that...and that definitely doesn't explain the brindle! 
So, info and several pictures...
They are around 1 year old.
They are roughly 40-45 pounds.
They are very high energy, though some of the pictures suggest otherwise, lol--the pictures were taken after looooots of frisbee play.

I haven't gotten to see her yet, just these pictures. Anybody have any input as to what she could be?
Ok, now that I have that vote in, down to business. My neighbor across the street got a new pup a couple years ago, a shorter-haired, brindle dog, much like "yours" above, and they said yes, it's a Germ Shep/Lab mix - to which I replied "are you sure" (thinking, no way!). Umm, oh yeah, one of those ... ooops, their bro's Lab got into the neighbor's yard, and the GS people were mad kinda things - hence, the search for 'puppy homes'. Both parents were really big and pure-bred, and full-grown, the 'pup' is maybe 55 lbs and brindle - and gorgeous!! Where that brindle came from, ?? Nature made it - I've seen GS/Lab mixes, and that's what they look like -- but this was a one shot deal (not a possibility of two or more dads), so nature made this brindle coat (mom is a blk/tan GS, not a blk sable) and wow, is this dog gorgeous. 

