Our new Nalgene Sustain product line is made from Tritan Renew, 50% certified recycled content further offsetting the use of fossil fuels and lowering greenhouse gas emissions. COLORBLOCK COLLECTION: Bold tones and colors. Vibrant, nalgene water bottles to match your mood at the gym, office, camping, exploring and everywhere in between BPA/BPS FREE: All Nalgene bottles are now made with a revolutionary resin powered by new recycling technology that transforms plastic destined for landfills into high-performance BPA/BPS-free bottles. Dishwasher safe LIGHTWEIGHT & DURABLE: Our simple, modern water bottles are made to last a lifetime but engineered to count for when weight matters most. Perfect lighweight water bottle for backpacking & hiking - fits most filtration units for clean water in a pinch LEAKPROOF GUARANTEE: Continuous, straight shouldered semi-buttress threads keep this leakproof water bottle sealed tight. Suitable for both warm and cold beverages (-40 to 212 degrees Fahrenheit)