7 July 2018 I have a Timbuk2 Metro Mini Messenger that I am using to carry sketching supplies such as a small Moleskine Sketchbook, a Cotman Watercolor Pocket set, waterbrush, fountain pen and mechanical pencil. Also my personal items - wallet, tissue, lotion, smart phone, .... Materials: Moleskine sketchbook, watercolor, TWSBI fountain pen filled with Noodlers' Lexington Ink.