This is the best waterproof bag i've ever owned. We have a small kids and have been out when a storm hit, soaking all of their stuff, to include diapers. This will be a great way to keep his gear dry.

From the stitching to the material, it all feels solid. I admit that i didn’t like it at first as it’s pretty stiff however after using it for several weeks i really like it. My only complaint is to make more colors!

There are padded areas on the bag and the straps are adjustable so you can get a good fit. Thanks to cross-straps at the waist and chest, the bag stays in place while biking. The straps make it super comfortable for long hauls.

Front zippered pocket is where i keep a few things i need quickly - my phone, keys, fob to get into the bike parking area and wallet. Clear pouch in the front is a super convenient place to put an ipad and even your phone.

Main issue is that it is not waterproof. Interior is barely 20 x 13 x 6 inches and that equates to an interior volume of 25 liters. I could just use any bag and put everything in individual dry sacks, it defeats the purpose.