I bought this bag after I had to dry my polar fleece and goretex rain suit out when I had it stored in what I learned was a water 'resistant' bag in my boat.  It had rained during the night and the bag was left in the rear of my boat.  It was an unpleasant surprise when I opened the bag to get a little something warm to layer.

I searched for a waterproof bag and saw this and thought I would give it a chance as I did not want to battle mildew again.  I ordered the large bag and switched my rain gear and small electronics as soon as it came in.  Everything fit and the bag IS waterproof.  I traveled to Lake Erie for a fishing trip and packed the bag on a trailer with no tarp.  It rained for several hours during the trip.  When we arrived I opened the bag and found that all my clothes were dry with no leakage, even though the open trailer was uncovered and towed at 70 mph.

Very happy with bag and it's capacity and as one owner stated, definitely not for storing chocolate or soft candy during the summer months.