I love this gigbag: it protects the trumpet very well, it’s waterproof enough for my needs and has a gigantic accessory pocket. This can’t be stressed enough: I use this pocket to carry two mutes, a metronome, a microphone, a cable and in some cases even a reverb pedal. The pocket has some small compartments inside that fit two mouthpieces, plus it comes with a separate mouthpiece pouch which is a nice touch.
It can be carried as a backpack or on one's shoulder: I have no problems biking with this bag on my back.
The build quality is phenomenal, I use it all the time and it looks exactly like new.