I've worn the Kenai with large and small backpacks. Also sling bags. My day/hiking pack is an Osprey Talon. Back country/big pack is a Granite Gear. I have two Kenai's. One for my Ruger Alaskan 454 Casull and the other was more recently added for my Glock 20 10mm. I prefer a chest rig over belt holsters and thigh rigs when I'm hiking or riding an ATV. Normally, I only use the chest rig when in bear country. While on elk hunts or bighorn, when the ATVs could go no further, it was a day's hike over rough terrain to get to a camp. I hardly knew the gun was there. The Kenai is very comfortable. Wide straps, very adjustable, light weight, retention is awesome. I don't care for big, heavy leather holsters. An ounce feels like a pound on a challenging hike.