Durable enough for backpacking trips, Nalgenes 48-oz. Silo Tritan Wide-Mouth Water Bottle is ideal for on-the-go hydration. 100% BPA-free bottle has a wide mouth for easily adding ice and fitting to purifiers or filters. Attached leakproof threaded cap doesnt use an O-ring, so theres no need to worry about losing anything. Eastman Tritan plastic resists tastes, stains and odors. Milliliter and ounce markings for easily tracking hydration. Dishwasher safe. Made in USA. 11.25H x 3.63 dia. Wt: 7.2 oz. Color: Silo Gray. Cancer and Reproductive Harm- www.P65Warnings.ca.gov. Type: Water Bottles.