I’m in a bit of a pickle. I bought a six year old who is (no word of a lie) measuring at 19.1 and has the most giant head on a non-draft horse I’ve ever encountered. I currently have him in a size 3 Antares and it BARELY fits. Throat latch is on the very last hole, cheek pieces are on the second to last holes (in a pelham, so it definitely wouldn’t fit with a snaffle) and while the noseband fits circumferentially, it is also on close to the last hole in length. And, as an aside, 60" reins are also too short for him; they’re fine when we’re working, but I can’t actually hack him out on the buckle without having to reach forward! He is gorgeous but plain, so I definitely want a fancy stitch, wide noseband bridle for him. I prefer a monocrown and ideally want buckles for the noseband on both sides, but that may be getting too picky. He is also still growing…
Here’s a picture of my baby dinosaur next to my 4’9" pasture fence (and he’s standing below grade by about 4 inches )