Originally Posted by
The 585
Thanks, guys. I'm looking to stay around $100 for a good quality bag. Panniers are not an option because I'll be riding my Surly Pacer (road bike geometry) which I want to keep rack-less for when I just want to ride.
I don't think you will find a waterproof backpack for $100. You could get one with a rain cover. like the Osprey Radial/ The rain cover is in a zippered compartment under the bag:
https://www.rei.com/product/105830/o...6-cycling-pack
I have it and use it often in the summer heat. Has lots of convenient commuting features (stands up on any surface for loading, etc.)
I also have a waterproof bag that is not as technical but is pricey:
https://missionworkshop.com/products...ksack-backpack
They also have lower priced waterproof bags
I know either of these brands will last you a very long time.