Calf is better for colder climates, as the leather is thicker & will resist wear better.
Lamb is soft & more comfortable imo, but will wear quicker.
I'm in socal, & after seeing and feeling both, I prefer lamb. But if i still lived in Chicago, I'd probably get the calf.
Well said. Agree on everything said. U can't go wrong either way. But over the seasons.. a lot prefer calf. But to be honest, it really depends where you live. And the lamb they use is very heavy it's not soft butter lamb like used on the l01 lamb version. The l17 lamb is much stiffer/heavy. Imagine a middle between calf/lamb