Seattle’s Filson has revealed a new product, a slick notebook cover created out of the iconic Horween leather from Chicago. Available in both large and small formats, the Horween leather covers protect and secure notebooks, giving them a more elegant look than they otherwise might. Each cover includes a pen holder, card pockets and Tin cloth accents.. They also come with a starter Rite in the Rain notebook. You can pick one up now at Filson.