I'm not usually too happy with pads on shoulder straps and honestly figured that one day I'd get brave and cut the low profile shoulder pads off of my Cafe Bags.
I was pushing my basket across the parking at the grocery store with my Small Cafe Bag (linen/steel) on my shoulder and suddenly realized I wasn't fighting to keep the strap from slipping off! My shoulders slope a little so strap slippage is always an issue for me.
The little grippy things on the under side of the shoulder pad did just what they were supposed to and kept the strap securely on my shoulder! And the fact that it's designed exactly as it's name implies means it doesn't overwhelm the strap and just quietly does it's job... very well. I'm so glad I realized this before I got scissor happy!