One of my faves, Opinel N°10
The Opinel no. 13 (and the Svord Peasant XL) both beat the Espada XL by half an inch, haha. Who's the biggest, baddest folder around? Cold Steel, ZT? Nah, Opinel High Speed Weapons Systems has them beat!

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I love large carry (for me, large starts at about 4" to 10" for a knife that I'll carry, though since I cannot carry a fixed blade in my locale, things like Espada XL, Matriarch 2 + Voyager XL tanto, Yojumbo, I've got a stiletto with a 6" blade that can wave, that I don't carry much but love for the novelty. Have a 5.7" clasp knife that is essentially a folding bowie on a slipjoint action, but the clasp folds up to act as a lock. It feels like a very secure system and is called a "Verlangerungsmesser", a German style where the blade is larger than the handle, traditionally used in a sheath. I would like to learn more of the veracity of that style, as it was my first large carry knife.
Other "large carries" I have include the Cold Steel Kudu at 4.25", Boker XXL Kalashnikov Bowie at 4.75" and hopefully more to come!
Will post pics soon. Also, any recs for best strong-tipped big folders from anyone? Seems CS Recon is a good contender for that, but, any others?