The 64oz and 128oz Hydro Flask Oasis transport water for the bigger jobs. The Oasis was designed to maximize control during pouring and transport. The strap is crafted to be comfortable for easy transport from the vehicle to the campsite or sideline. By placing the pour spout as close to the edge of the vessel as possible, we give more control for the perfect pour. No matter how thirsty you are, the 128 takes care of your hydration needs and the longer hauls for social activities that continue well after the sun sets.