I don't know if they still make these backpacks the same way with the same materials but if they do its been 8 years with the one I have! I purchased this backpack Apr 11, 2017 and it's still going strong. It's seen A LOT of use between hiking, biking, and multple trips to the gym during the week. Spilled water bottles, scraped on trees and rocks, and packed full more times than I can count with everything from dinner leftovers to hiking gear.One strap has some fraying, (I've definitely exceeded the recommended weight capacity on multiple occasions) but it doesn't affectthe functionality or durability at this point so far. I'm using it the same way I always have. I've caused some scuffing on the bottom from normal use but even with that, the fabric has held up great. A definite testament to the quality!I highly recommend. Great size, fits a lot more than the pics show, comfortable straps, and overall well worth the price.I'd definitely buy another one!