http://www.mec.ca/Products/product_l...=1206287682422 I've bought their lines ever since I returned to cycling. On wet days groceries are usually in plastic bags, so no worries. I also tour in them, bike commute, etc. On average, the pannier lasts me over 5 years. And whenever I bike, I take my pannier.

http://www.arkel-od.com/
My partner bought panniers which he uses only for bike touring. He has an Ortileb for touring also.

Fabric takes alot of abuse, not like nylon at all.