I saw this EVO dry backpack when I was at Divers Direct in Key Largo a few years ago. It was $15 on sale. In fact its always on sale. It filled a need for sea kayaking that day but I have been using it for commuting occasionally and its really nice.
If you don’t have to bring a laptop, but need to carry a couple of things on a wet bike commute this bag is great. Fine for a change of clothes and bike tools.
It has plenty of padding on it and very adjustable straps. It is essentially a dry bag with shoulder and waist straps. It’s not the highest of quality but I like it and it was definitely worth the $15. I have had it for a few years now.
You can get it at Divers Direct.
I like this bag and ended up using a ton.
I decided to get a nicer version of this type of bag. The SealLine Urban Backpack: http://robonza.blogspot.com/2009/11/review-sealline-urban-backpack.html
-Joe
I've used mine to death. Wish I could find another!