Hi everyone,
so I am trying to mod this pair of silnylon "hipsacks" which I carry behind the hipbelt pockets on either side of my SMD Comet for more hip pocket storage space. They are currently kept closed by cord that just loops through the top (like a normal stuff sack) and is then fastened with a cord lock.
Here they are:

However, it's not easy to tighten the cordlock one-handed and I have lost some gloves that way (sack not properly tightened)… I have replaced the loop with some stretch cord and ideally I would like to be able to tighten it down with one hand. The best option that I can think of are 1-handed cord locks, you know, the type that is itself attached to the little stuff sack.
Like this one here (I think):

So can you think of what the most minimalist type of cord lock is that would do the job? Where could I get it? Would you recommend 1/16" Shock Cord like zpacks is selling it to keep that sack shut? How should I fix that cord lock in place?
Your help is very much appreciated. As you can probably tell, I am a noob in MYOG matters.

