Used the sea to summit dry sacks for a Northern Tier scouting high adventure. We went 100 miles in weather that included rain and storms. We wanted and had to swim to shore. To my amazement the items inside were dry as a bone. On one of the bags (we used 9) The clip came that holds the bag closed did lose the screw and came loose. Had to use rope to keep it coded. Hence 4 stars.
