Yes top of the device exceeds a little but this poses NO problem once the flap in position, it is even more convenient to exit quickly. That is the purpose of these devices can be removed and stored quickly, they are tough and should be treated as such. Underwater, the holster fleet but not enough to prevent the unit from flowing, which suits seen me return impossible surface during decompression scuba diving. For others, mistrust if you take it to the bottom of it unattainable for you ...