S WELL. 10017-G18-13465. S WELL X LILLY PULITZER INTO THE GROVES. GREEN PINK. An iconic Lilly Pulitzer print upgrades a double-walled stainless-steel water bottle that helps you stay hydrated in style. The bottle features signature ThermaS well fabrication that keeps cold drinks cold for up to 24 hours and hot drinks hot for up to 12 as well as a wide mouth that makes it easy to fill add ice cubes and clean.