I can confidently say this is one of my best purchases. Very durable bag, I've had it for about 2-3 months now and use it daily, 9/10 smell proof, only way I've found that the smell can leak out is when the zippers are locked, there is a very small opening that you can smell through but only if you're really trying. I take this bag everywhere and no body suspects a thing, definitely recommend it. A little sad that they updated the logo on the front, when I ordered the bag they still had the old logo in the pictures but I received the current new logo which is plane in my opinion.