Review on Hydration Backpack Pack - 3 Pack with 2L Water Bladder for Hiking, Running, Cycling, Camping - Water Rucksack for Hydration with Hydration Bladder - Biking Water Backpack by John Harvieux

2 out of 3 of our bubbles suddenly stopped holding water. I rinsed each blister and then filled it with water, everything is holding up well. After securing them all in the bags, I placed 3 bags on the table while putting on my shoes. Then we heard it... Somehow one of the side seams of the bladder came undone and water was everywhere. After cleaning, my husband filled up some bottles of water and we went for a little walk. After running a mile, I felt cold on my back as my water bladder emptied onto me. Luckily my daughter held out but all 3 of us will be back as we won't risk another hike with this quality. Nothing sharp came near the blisters. We didn't use the extra space in the pockets. They dissipated on their own with no pressure.