This in conjunction with the micro map back panel has been a game changer. I was worried the bladder was going to protrude from the back panel too much for me sitting in my vehicle at work. It has been amazing so far with providing me a quick option of getting out of my vehicle with a hydration source on several long hikes. I highly recommend this for someone looking for a hydration source already attached to body armor that wants something that only adds thickness horizontally across a wide area like body armor.