I have Sidi Flex-Force (previous version of the Crossfire) and love them. Serious protetion but the hinged ankle means you can walk in them:

Sidi Crossfire Motocross Boots - Black Motocross Gear from Dirt Bike Bitz

All day comfortable though not waterproof. Sealskins socks are the best bet:

sealskinz.com waterproof socks and gloves clothing from porvair international

Those sidi adventure rain boots do look good. If they were around when I was shopping two years ago, I think I would have got them over the crossfires.

Yes, about 8,000 miles of "all-weather-riding later, I am still very happy with them :thumbup1:

I'll put my vote in for Alt-berg hogg boots as well, I have had mine for 6 years, used most days, never leaked a drop, comfortable on a hike.

Not cheap but good
 

I like the Vendramini Desert-Alps. Waterproof and with Outlast lining.
When clean they look good enough to wear under normal pants.
Not too heavy, reasonable protection and light enough with good flexibility to wear all day even when walking around.

I visited Altberg on Saturday for a fitting so they could make a pair of Borego boots for me. The bloke in the shop shook his head and told me that wasnt going to be necessary, went upstairs and brought down a pair of size 11s, a perfect fit! There were only 2 pairs in the shop, 7 1/2 on display and 11.
OK, so I've not worn them on the bike yet, but I did wear them all the way back on the 7 hour flight, and no complaints so far! He explained that they have the same sole and armour as their other bike boots, they just use a suede leather and have a 'gussett' style tounge so the sand dosent get in. There's more fabric on the uppers for a bit more breathing.

They are certainly well made and feel great. Even better, he knocked 20 quid off the price as they were in stock. Allah akbah as they say round here!

300,000 miles one pairs of boots
 

hi
I used my Altbergs when I used to be a courier lived in them, hiked in them rode the morroco, middle east and back, criss-crossed europe more times than I can remember.
the thing with altbergs is than when wear them out, soles ,waterproof membrane send them back and they will rebuild them for a modest cost.
after alot of years I finally had a new set built, probabily the only person to wear out a set of altbergs!

cheers nobby :thumbup1:

Have been using a pair of TCX Infinity's for years. Waterproof, pretty high, and they hold up good.