My Vintage Military straps are made from vintage Swedish & French military ammunition pouches. My brother was checking these out the other day and commented, "They smell like history." I couldn't have put it better myself. The smell is a unique combination of leather, gun powder, machine oil, and maybe a little bit of mold--hey, they're old!!! Old stuff smells. Personally, I love the chance to wear a bit of history on my wrist. Obviously, they'll look right at home on your vintage or vintage inspired piece but I also love the contrast of a vintage strap on a contemporary watch. Loads of character and each one is unique.