It's a bino pack with a built in holster. It's all day comfortable and does a great job with holding binoculars and a pistol. I'm rocking some 11x45 binos and a full size pistol. A feature I haven't used is the Molle webbing on the back of the harness you could attach a water bladder or rifle scabbard to. I give this harness a 4.5 out of 5. The only complaint I have is the top of the bino pouch closes towards your chest. This is an issue if you have pistol in the holster located between your chest and the bino pouch. Opening the bino pouch is very easy and fast, but closing the lid in order to get a waterproof seal normally requires me removing the pistol.