It looks like a Levi leather jacket to me. It has poppers rather than buttons (my modern one has buttons). Yes, they came in both black and brown.
The shoes look a little like the jodhpur boots that came into fashion briefly in late 68 to early 69 in London. I believe those boots were known as 'Riders' elsewhere in the UK. I think that what the guys are wearing in the photo are leather 'Chelsea boots' (I agree with covskin), probably bought at a High Street shop, probably the nearest decent thing they could get to a 'rider' style.
Note how the blokes with suit jackets button them.