Protect your precious pens from the daily rough-and-tumble with these plush-lined sleeves. Retro 51 and Rickshaw Bagworks have teamed up to offer this pen sleeve to match the Retro 51  Smithsonian Panda pen.

This Smithsonian collection by Retro51 not only has dreamy rollerballs, but it also has pen sleeves with multiple printed charming pandas, and the Smithsonian sun logo.