Bought this to ensure I had enough water when out riding my bike. As I store this in an interior bag, I didn't want something that sweat OR leaked, as that would not only make other items damp, but defeat the purpose of having additional drinking water, if it all leaked out; it does not. Water stayed cool for hours and the large size ensured I could fill up my water bottle a few times. Great product and highly recommend!
Rating: [5 of 5 Stars!]