His hind leg markings are typical Clyde and if a half clyde is crossed with something non feathered then it will often have little to no feather - I've seen many feathered draft x TB's or draft x arabs that have the same feather as this one
He's also young and has time to grow
Our Clyde x arab is only 15.1, she was 14.3 as a 3 year old, in this pic of her as a 4 yr old she was still only just beginning to thicken up in her neck
I just don't see any Draft characteristics in this horse, jaydee. However, those leg markings, typical of Sabino, are seen in Clydes, Shires, Gypsies, Paints and Pintos. Probably some other breeds too. I still think the OP's horse is a mixture of light horse breeds.
I just don't think that he looks mature enough for his age to be a light breed, he's not in poor condition and a QH is often looking full grown at 2 and being ridden where the draft x's are slow to mature
That colouring is often seen in the welsh breeds but again - he doesn't look mature enough for a pony breed of that age.
A pic of a TB X Clyde that's the same age and 15.1
Some similar coloured welsh ponies - one of them is a yearling
A 2 yr old QH
The gypsy cobs seem to mature at a very similar rate to the welsh cobs and Highlands
I would expect a mustang to look a lot more mature than this little horse does
Maybe its not as old as they are telling the OP it is?
I'm not seeing much of a draft cross either. I have purebred Arabians with the same leg markings, and she is DNA typed so Draft in her.
A QH cross is very likely, but either way, he sure is a handsome fellow!
The colour seems to show up in lots of different breeds. This is EWAS Hook Dun Phonics off a Quarter horse site
I think my problem with its given breed is that it looks too immature for a 2yr old of those breeds in good condition - I threw the Clyde in because they are very slow to mature
As a QH it somehow only looks about 18 months old