Timbuk2 has you covered with up to 65% their messenger bags until 7 January.
Bags can also be easily customised with storage accessories as well as selecting your own colour scheme.
There’s a fairly wide selection available, and everything in the sale section is discounted by at least 35%. The sale runs between now and January 7, so start narrowing down your choices from the list now.
Looked interesting, but $50 shipping seems a bit steep