I found that the SURGE was just heavy to be pocket carried via clip inside my Jean or coat pocket. T
I always used a sheath, usually nylon style as I would chew up a leather style as I was on concrete laying on one side or other accessing cabinets or housings.
There are some kydex style sheaths for the Surge, providing quick access, in the states those are usually $20 to 25.
All the best!