I also have a very nice leather (unlined) jacket from Lakeland - cost me £25 in Oxfam, worth every penny! Occasionally I fly an aeroplane in it, but mostly I just wear it on chilly days when I want pocket space.
Just like a sheepskin jacket, keep the leather fed, and it'll last forever. Don't, and it'll last 18 months.
Except the pockets, most of which I need to get re-lined. I think that Lakeland assume none of their customers ever carry keys !
G