So, I have this awesome water bottle that never leaks, and I took it to Drill today in my saddlebag. I didn't end up getting it out at Drill, and when I got home I was tired, so I just parked and took a nap. When I went back to unpack the bike there was a little puddle under my bag... Oh NO! I open the bag and see this.
I think it held the water IN remarkably well, so maybe that means it'll hold the water OUT well?