I currently own two Duluth Packs, a #4 and a Paul Bunyan. Both of these packs are TOUGH AS NAILS. The Paul Bunyan pack will hold more gear than I can physically carry. While Duluth packs are more expansive than other packs, if properly taken care of they will last a lifetime. The Duluth Pack company is second to none on customer service. I noticed two holes wearing through my #4 last summer (it was purchased new in 2007) while on a trip. Upon returning I contacted Duluth Pack Company, returned the pack and they replaced it with a BRAND NEW pack! Great packs, great company, great customer service!!