Outdoor Research Dry Ditty Sacks
Retail Price: $26.50
Specs per manufacturer: Hit the soggy trail and paddle around lush islands; these lightweight bags with a waterproof roll-top closure will keep essentials organized and dry for the long haul. Small: 5.25 x 5.5 in. Medium: 8 x 8 in. Large: 9.25 x 9.25 in. 
Findings: These little sacks are the most functional dry bags around. Of course, we have big ones for our clothing and sleeping bags, but for small items, these are the best. I use them all the time even backpacking. When I wear my camera around my neck in the rain, I always stick it in one of these ditty sacks. I put it on sort of like a rain coat. I think I’m going to get a couple more sets!