I made this linen bag I found from the site, http://Fabrics-store.com/. (my apologies for not being able to prrovide a link in my post, I haven't quite figured out how to place a link using an iPad)
This site provided the pattern and I purchased the linen from them as well. They specialize in all kinds of yummy linens! On their blog, they have a post and tutitorial about this bag, commenting that it would keep homemade bread fresher longer and better than plastic or paper. Since I have started making bread again, I was excited to see this and made one straight up. I will be giving it a try next week when I bake our weekly loaf. I'll keep you posted on whether it works or not.