Just a correction to the gent who mentioned the SK underapron pocket, being similar to the PK.

It's not. The PK pocket is on the outer side of the under apron, and is easily accessable. The SK pouch (not really a pocket) is on the inside of the waistband, between the outer and underaprons and is actually closed off when the velcro is closed. Like Ron, I have never been able to use it, as you just cant get to it. Maybe if you had shorts underneath and could partially undo the apron...