Those look really nice! I've always baulked at the price of the Eastman / BR gloves. Picked up a no-name repro pair on eBay for a fraction of the price a couple of years ago. No doubt much less accurate as repros, but as a decent pair of gloves they've stood up nicely to the last couple of Winters. They live in the pocket of my B3. I think they're goat. Thin, but durable. Good in all but the worst of the cold - during Second Winter this week I have been wearing the Irvin a lot, and mostly my Sheepskin gloves. Bulkier and clumsier, but they'll handle the worst of the cold better. Fantasising about the Summer weather when I can break out the cotton gloves again...
Here are mine again (see when new above), worn through a second UK winter:
Lear
Nice newspaper!....perfect for a "nuclear winter".