These are the widest calf boots I could find commercially available but unfortunately they just didn’t work for my leg shape. They’re NWOT, I’ve never worn them but do not have the box anymore. They do fit around my calf, so I can confidently say that they will accommodate a 26” calf. They come mid-calf in height on me & I am 5’ 7” with a 32” inseam. Smoke free household but we do have a dog & a cat!