Double Y 18/8 Stainless Steel Double Walled Insulated Water Mug,40 OZ with Carabiner,Big Mouth Thermo Sports Water Bottle(Navy Blue) VACUUM INSULATED - The Double Y insulated water bottle is a double walled insulated mug, keeping drinks warm/cold for up to 24 hours. This vacuum thermos will never sweat. PREMIUM 18/8 STAINLESS STEEL - These bottles are made from the highest quality materials, making them durable and functional. The lid is stainless steel, it won't crack like plastic lids. POWDER COATED - The exterior is powder coated for a colorful and rugged finish.Please do not trying to take the Paper off of the bottle ENJOY EVERY SIP TO THE FULLEST HOUR AFTER HOUR: Premium quality double wall vacuum insulated design locks in temperature, so your coffee and tea stays hot and your water keeps ice cold for hours and hours. Perfect black stainless steel water bottle for milk, iced tea, smoothies, or juice. LIFETIME GUARANTEE - We stand by our quality and want you to love this bottle. It performs up to or better than Hydro Flask, Nalgene, Yeti, Thermos or any other brand of travel mug.