I was concerned that this bag would not fit all of my gear as I have had trouble transporting them in the past. It's actually quite good. Fits both of my snowboard boots (size 28cm) and my helmet in the middle. It also has room for my snow pants, jacket, and goggles above the helmet in the main compartment if I fold them carefully. This is great for storing everything all at once so that when it's time to go to the mountains I only need to grab this bag and my snowboard. When wearing as a backpack it would be quite wide, so watch out for door frames! You can also fold the backpack arm straps away and just use it as more of a duffle bag if you prefer. Build quality is quite good-- zippers and everything seem pretty robust. Material is tough, and there is some waterproofing on the bottom side. Good design!