Hey Grip
I too measure 19" ...
around the calf!!!
Jeez!!
I bought these almost 12 months ago while in Arizona from "Boot Scootin'" in Cave Creek.
Actually the same colour too!!
I've worn them every time I ride and apart from the occational wax, they have never leaked!
Because they are brown, they have .. ahem ..
aged with use.
There is a dark mark where the gear change lever has rubbed 'em.
Also, the right heel as a little chunk taken out were the foot guard rubs.
They are made by
Durango .
The model number is DB594 and the brown pic came up when I entered it in the search box - I guess you'll have to search more to find black.
I stayed with a friend while over there and she has just gone back after a Christmas visit - I told her I needed another pair, funnily enough, in black as a second pair to wear for normal use.
I wish i'd bought two pairs while I was there

.
I paid, I think, $130 (around £70 at the time).
I normally take 12 in footwear but these were 13D (wider fitting - not normally a choice over here!!).
I made the mistake of wearing them for the first time when I went to Las Vegas and rubbed a blister approx 1 1/2" diameter on each foot! Nice!
I couldn't wear shoes for 2 1/2 weeks and come back through customs wearing flip flops.
(Point of interest: customs don't bother x-raying flip flops!

)
They are so comfy now and I wore them when I came to Edinburgh for Hogmanay - walked around for nearly 9 hours, no problems. They do not squeeze my calf at all - there is a gap around the leg.