Fleece does hold smells. I only learned that when I started using Fuzzi Bunz...otherwise I never had fleece. I tried baking soda but found that Borax works a lot better to get rid of the smell for me anyway. I do a BS soak, rinse, and add a bit of borax to the wash. I don't have to use it everytime but when I notice my FB stinking, in goes some borax!