We have had these Heavy Duty fluro pouches custom made here in New Zealand, they have a wide opening for a large belt, and is the same pouch we use on all of our rental Beacons. They are sturdy, highly visible should you misplace your PLB also comes with a 6 year guarantee of a full replacement should one fail.
The pouch will fit the ACR PLB375 & PLB400 . These help protect your life saving PLB
We HIGHLY reccomend getting one if you dont have one already.