Sack failure

My backpack is failing. A second major pouch has just become un-zippable. I currently have two binder-clips holding my stuff in my sack. This is both risky and undignified.

I require a new sack.

The floor is now open for both men and women to discuss the merits of their particular favorite sack. I will entertain suggestions for both one-strap and two-strap models, but it must come in the color “black.”