Filson Padded Laptop BagBriefcase - Otter Green FABRICOil Finish Rugged Twill, 22 oz. 100 cotton twill, 2 ply by 3 ply, paraffin treated for maximum water repellency LEATHERGenuine Bridle Leather, 100 cowhide, vegetable tanned Largest of our 3 briefcases Dense foam padding on bottom and sides Double layer of fabric on the bottom