Coldest Water Bottle With Straw] The Alpine flask series is engineered to hold ice up to 60 hours making it best in class among insulated water bottles. The stainless steel flask and the bottle lid are both triple insulated. it can keep ice water cold 36 to 60 hours, which is best in class for wide mouth water bottles with straw lids. It is a leakproof water bottle with the ultra secure straw lid. LEAKPROOF DESIGN: Say goodbye to spills! Our ultra-secure straw lid ensures your water stays safely inside the bottle, making it the ideal choice for the gym, biking, or travel without worrying about leaks. DURABLE & DISHWASHER SAFE: Crafted from ultra-thick stainless steel, this water bottle is built to last and dent resistant. Plus, its dishwasher safe, so cleanup is a breezejust toss it in after your adventure! CONVENIENT FLIP N' SIP LID: Keep your sip straw clean and accessible with our unique lid design. It opens effortlessly for easy sipping and closes to protect the strawp