Borrowed from the original 1908 Panama diary, the Panama collection is set apart by its lightweight cross-grain leather. Smythson's Panama leather has become a Smythson icon, borrowing its telltale cross-grain texture from Smythson's famous Panama diary, designed by Frank Smythson in 1908. Lightweight, flexible, and hard-wearing, just like its namesake, this calf leather beautifully combines form and function.