Perfect for morning hikes, afternoon ski lessons, or evenings by the campfire, Hydroflasks 20 oz Wide Mouth bottle is made with professional-grade stainless steel and a wider opening for faster fill. Hydroflask couldnt think of a bottle more deserving of a refresh, so theyve elevated the silhouette and simplified design without compromising one degree of performance. And their Color Last powder coat is dishwasher safe for even more convenience. Cold stays ice cold for 24 hours, and hot stays wickedly hot for 12 just like always.