Any bag which can accommodate 6 trombone mutes is going to be pretty big and this one is not shy about its size.
Having said that it makes good use of the size, being able to hold music and accessories safely in the various pockets.
It looks pretty good too, so no issue having it next to you on the concert platform to organise your mutes and have everything to hand.
Despite the size it’s pretty light when loaded with mutes and handles well, over all its a more convenient way to stay organised and bring everything to rehearsals and gigs.