I've got SHIFT Havoc pants.
Combination of textile & leather, great knee coverage.
They're heavy & produce a lot ball sweat, but I still like 'em.
Never had anything else but I just did a google search for SHIFT Recon (because of poor memory, I thought that was what mine were) - they look like they'd be a bit more breathable.
I'm in midwest where 90+ degree days usually mean high humidity as well, so something a bit more breathable would be nice, but I don't think the Havocs are bad when I'm moving.
Abba Zaba, you my only friend.