My wife and I each got 2 of the 27L Rhinowalks for a 7 day touring trip and they worked flawlessly. Water proof, felt solidly constructed, no issues with zippers, nothing broke. I don't know about longer-term durability but I have no regrets.

I use these:

https://www.amazon.com/gp/aw/d/B07MTZW9F9?psc=1&ref=ppx_pop_mob_b_asin_title

They are pretty decent and I wanted waterproof because I didn't want to meet around with weather covers. They fit a LOT, I carry like half a weeks groceries for a family of four in two of them.

Try amazon smile to donate to charity automatically at no cost to you!
https://smile.amazon.com/Rhinowalk-Waterproof-Shoulder-Professional-Accessories/dp/B07MTZW9F9/ref=sr_1_1_sspa?dchild=1&keywords=rhinowalk+pannier+27l&qid=1601308408&s=sporting-goods&sr=1-1-spons&psc=1&smid=AE7G1ZBYCMJU6&spLa=ZW5jcnlwdGVkUXVhbGlmaWVyPUEyUFlDOEQ1WTdZN0E2JmVuY3J5cHRlZElkPUEwNzU0MzkwMllOVVRVUk1MUzVYSSZlbmNyeXB0ZWRBZElkPUEwNjg2MTUzMkRFTFczTzhJWEhVVyZ3aWRnZXROYW1lPXNwX2F0ZiZhY3Rpb249Y2xpY2tSZWRpcmVjdCZkb05vdExvZ0NsaWNrPXRydWU=
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