Whether you call them travel bags, duffle bags or weekend bags, Baltzar thinks there are two main things to look for when getting one. First off, a travel bag needs to be big and practical enough to hold all your belongings. Secondly, it should be of high quality and look elegant. Leather travel duffles can be spacious and sturdy, and can only look better with the patina that comes with use. They can be carried by hand or over the shoulder; elegant either way.