Klean Kanteen Classic Stainless Steel Water Bottle with Klean Coat, Double Wall Vacuum Insulated and Leak Proof Loop Cap 2018 DURABLE & INSULATED - Our stainless steel water bottles are made from high quality food grade 18/8 STAINLESS STEEL that won't flex when squeezed like cheap knockoffs. Double Wall Climate Lock INSULATED water bottle design is perfect for ice water and hot coffee even hours later. The Classic insulated water bottle keeps drinks ICED 50-100 HOURS & HOT 20-30 HOURS. SUSTAINABLE - Our KLEAN COAT powder coat is specialty formulated to be safe for people and planet while being 4X MORE DURABLE. All color Klean Kanteen stainless steel water bottles from 2018 feature this coating which is CHIP and SCRATCH RESISTANT. We went beyond regulatory standards to create a SAFE coating for those applying the coating and the people that use our water bottles. Matte finish has slight texture, gloss finish is smooth and shiny. EASY TO USE & VERSATILE - Large 1.75 inch (44 mm) opening fits ice and is easy to fill and pour. Comes with LEAK PROOF Loop Cap. COMPATIBLE with all Klean Kanteen Classic caps including the spill proof Sport Cap 3.0 and plastic free bamboo cap. HIGH QUALITY & EASY TO CLEAN - All Klean Kanteens water bottles go through extensive quality control to ensure the HIGHEST QUALITY materials and construction. This means all seams, threads and stainless steel finishes are smooth and easy to clean. The interior is ELECTROPOLISHED which is a safe and non-toxic process which helps with cleaning and won't retain or impart flavors. LIFETIME WARRANTY - Our goal is to REDUCE SINGLE USE, plain and simple. So we make products guaranteed to hold up to whatever life throws at them. Our lifetime STRONG AS STEEL GUARANTEE is our promise to making a truly superior product that we stand behind in the occasion you get a product that doesn't meet our standards. We released the first FULL STAINLESS STEEL WATER BOTTLE in 2004 and will be here for years to come with the best service and stainless steel bottles and products.